Re: [Dovecot] Cyrus vs Dovecot
On Wed, 13 Aug 2008, Wesley Craig wrote: On 13 Aug 2008, at 10:31, kbajwa wrote: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 As someone who answers many help requests for cyrus (and I'm very far from the only one), I can honestly say I've never seen a requests from you. Perhaps you've had a lot of occasion to ask for help with Dovecot. I'm happy to hear you've gotten that help. Community is a lot of what open source software is about. As for your experience with the cyrus imapd community, perhaps your sample size is too small. Or perhaps you're thinking of paid support? Because I know very well that you can get that for cyrus imap. can you provide links to where from? David Lang
Re: [Dovecot] Cyrus vs Dovecot
Pascal Gienger a écrit : Mathieu Kretchner [EMAIL PROTECTED] wrote: kbajwa a écrit : Cyrus = 0 Dovecot= 100 I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Stop. What's this? a) crossposing content to the dovecot mailing list b) talking about sarcastic answers when users try to help you saying that migrating from an old cyrus release to a new one is easier then migrating to a new system? c) many users here have described their running configuration to help you. d) starting an advocacy war? What are you trying to do? Sorry but your manners on cyrus list have been disrespectful and hurt me... I do not want an advocacy war so I'll stop here this discussion and focus on technical aspect. begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
Ed W a écrit : Mathieu Kretchner wrote: kbajwa a écrit : Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Reading the cyrus list I think the above quote might be a bit unfair and accidently crossposted? In any case I only have experience of dovecot and it's used in some larger installs such as the old webmail.us, now 11 (I believe). I think your installation is probably large enough that you might want to do a trial migration of a couple of accounts and see if migration is a problem. I'm trying to migrate my own account from cyrus to dovecot with the 2 tools which seems to fit the most my needs : cyrus2courier : Work fast and well but I must use cyrus2courier-1.5.ts and I have 2 problems with it : falg unseen (or seen if I want) for all e-mail / Sub folders of Inbox are invisibles (I see them on the File System) ! imapsync : Must add a transition configuration to dovecot in order to have user passdb file (or master user) but once done it's ok and work correctly. I've just tested a transition and I'm happy to see it keeps all flags (seen/unseen too) and timestamp but as cyrus2courier, I can't see my inbox sub folders although I could see them (full) on the File System? Certainly for all new servers I would STRONGLY recommend some sort of virtualisation option (I use linux vservers, lots of other options available). This makes it fantasically easy to boot up (say) three instances of your target software installation, perhaps all with different configuration options and compare them easily. I used this as a solution to migrate from Courier and also recently when I was migrating from 32bit to 64bit guests - essentially you spin up your new guest, get it all ready, test it like made and then in a couple of seconds you can down the live guest and boot up the new guest. I separate out all signficant data from the guest partition so try to keep the actual installations under a couple hundred MB each (even that feels bloated, but hey) and this makes it simple to boot up a copy of a guest to test some change without having to copy too much I personally picked dovecot because I worried about the horror stories I read about with cyrus. However, both are clearly the two best options available for opensource solutions right now and both are used in large installations so you should be very happy with either. With regards to functionality it would appear (I don't use cyrus) that cyrus has more admin tools to do stuff, but Dovecot is built to be more hackable, for example you can easily run a script before each (imap, etc) login and hence do some very advanced stuff through that route. Plugins also appear to be quite easy to write to extend dovecot in new directions On the cyrus list they mentioned email retention policies. Now some people are going to say that this is really a job for the MTA (postfix/sendmail/etc). However, you have some plugins which might get you partly towards solving that need, but nothing out of the box which would give you a cast iron (stand up in court) kind of archiving control. However, you can get close I think Ed W begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
* Mathieu Kretchner [EMAIL PROTECTED]: Ed W a écrit : Mathieu Kretchner wrote: kbajwa a écrit : Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Reading the cyrus list I think the above quote might be a bit unfair and accidently crossposted? In any case I only have experience of dovecot and it's used in some larger installs such as the old webmail.us, now 11 (I believe). I think your installation is probably large enough that you might want to do a trial migration of a couple of accounts and see if migration is a problem. I'm trying to migrate my own account from cyrus to dovecot with the 2 tools which seems to fit the most my needs : cyrus2courier : Work fast and well but I must use cyrus2courier-1.5.ts and I have 2 problems with it : falg unseen (or seen if I want) for all e-mail / Sub folders of Inbox are invisibles (I see them on the File System) ! imapsync : Must add a transition configuration to dovecot in order to have user passdb file (or master user) but once done it's ok and work correctly. I've just tested a transition and I'm happy to see it keeps all flags (seen/unseen too) and timestamp but as cyrus2courier, I can't see my inbox sub folders although I could see them (full) on the File System? If you serve Outlook Clients and use imapsynv check that they don't see all mails with the same delivery date. There's a script on the imapsync website that fixes this problem. [EMAIL PROTECTED] -- state of mind Agentur für Kommunikation, Design und Softwareentwicklung Patrick KoetterTel: 089 45227227 Echinger Strasse 3 Fax: 089 45227226 85386 Eching Web: http://www.state-of-mind.de Amtsgericht MünchenPartnerschaftsregister PR 563
Re: [Dovecot] Cyrus vs Dovecot
In any case I only have experience of dovecot and it's used in some larger installs such as the old webmail.us, now 11 (I believe). I think your installation is probably large enough that you might want to do a trial migration of a couple of accounts and see if migration is a problem. I'm trying to migrate my own account from cyrus to dovecot with the 2 tools which seems to fit the most my needs : cyrus2courier : Work fast and well but I must use cyrus2courier-1.5.ts and I have 2 problems with it : falg unseen (or seen if I want) for all e-mail / Sub folders of Inbox are invisibles (I see them on the File System) ! imapsync : Must add a transition configuration to dovecot in order to have user passdb file (or master user) but once done it's ok and work correctly. I've just tested a transition and I'm happy to see it keeps all flags (seen/unseen too) and timestamp but as cyrus2courier, I can't see my inbox sub folders although I could see them (full) on the File System? If you serve Outlook Clients and use imapsynv check that they don't see all mails with the same delivery date. There's a script on the imapsync website that fixes this problem. [EMAIL PROTECTED] We are using thunderbird here, but I'm glad to have your advice. begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
On Thu, 14 Aug 2008 10:42:49 +0200, Mathieu Kretchner [EMAIL PROTECTED] wrote: Ed W a écrit : Mathieu Kretchner wrote: kbajwa a écrit : Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Reading the cyrus list I think the above quote might be a bit unfair and accidently crossposted? In any case I only have experience of dovecot and it's used in some larger installs such as the old webmail.us, now 11 (I believe). I think your installation is probably large enough that you might want to do a trial migration of a couple of accounts and see if migration is a problem. I'm trying to migrate my own account from cyrus to dovecot with the 2 tools which seems to fit the most my needs : cyrus2courier : Work fast and well but I must use cyrus2courier-1.5.ts and I have 2 problems with it : falg unseen (or seen if I want) for all e-mail / Sub folders of Inbox are invisibles (I see them on the File System) ! imapsync : Must add a transition configuration to dovecot in order to have user passdb file (or master user) but once done it's ok and work correctly. I've just tested a transition and I'm happy to see it keeps all flags (seen/unseen too) and timestamp but as cyrus2courier, I can't see my inbox sub folders although I could see them (full) on the File System? You need to subscribe to the folders on the new server. Certainly for all new servers I would STRONGLY recommend some sort of virtualisation option (I use linux vservers, lots of other options available). This makes it fantasically easy to boot up (say) three instances of your target software installation, perhaps all with different configuration options and compare them easily. I used this as a solution to migrate from Courier and also recently when I was migrating from 32bit to 64bit guests - essentially you spin up your new guest, get it all ready, test it like made and then in a couple of seconds you can down the live guest and boot up the new guest. I separate out all signficant data from the guest partition so try to keep the actual installations under a couple hundred MB each (even that feels bloated, but hey) and this makes it simple to boot up a copy of a guest to test some change without having to copy too much I personally picked dovecot because I worried about the horror stories I read about with cyrus. However, both are clearly the two best options available for opensource solutions right now and both are used in large installations so you should be very happy with either. With regards to functionality it would appear (I don't use cyrus) that cyrus has more admin tools to do stuff, but Dovecot is built to be more hackable, for example you can easily run a script before each (imap, etc) login and hence do some very advanced stuff through that route. Plugins also appear to be quite easy to write to extend dovecot in new directions On the cyrus list they mentioned email retention policies. Now some people are going to say that this is really a job for the MTA (postfix/sendmail/etc). However, you have some plugins which might get you partly towards solving that need, but nothing out of the box which would give you a cast iron (stand up in court) kind of archiving control. However, you can get close I think Ed W
Re: [Dovecot] Cyrus vs Dovecot
You need to subscribe to the folders on the new server. I find it just a few time after my mail but anyway thank you for your answer ! begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt
Re: [Dovecot] Cyrus vs Dovecot
kbajwa wrote: Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Don't forget that although for some reason he doesn't widely advertise it - Timo is also for hire if you have special requirements or need a bug fixing even faster. He is very good value and I am not sure why he doesn't say more about his services more publicly... If you had a requirement for a custom feature then please do approach him with your cheque book open and request a feature - I think you will have a very good experience Commercial support can be a real boon for some companies so if this is you then be sure to ask Ed W
Re: [Dovecot] Cyrus vs Dovecot
kbajwa a écrit : Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! regards begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
Mathieu Kretchner wrote: kbajwa a écrit : Hello: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 My personal experience. Kirt I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Reading the cyrus list I think the above quote might be a bit unfair and accidently crossposted? In any case I only have experience of dovecot and it's used in some larger installs such as the old webmail.us, now 11 (I believe). I think your installation is probably large enough that you might want to do a trial migration of a couple of accounts and see if migration is a problem. Certainly for all new servers I would STRONGLY recommend some sort of virtualisation option (I use linux vservers, lots of other options available). This makes it fantasically easy to boot up (say) three instances of your target software installation, perhaps all with different configuration options and compare them easily. I used this as a solution to migrate from Courier and also recently when I was migrating from 32bit to 64bit guests - essentially you spin up your new guest, get it all ready, test it like made and then in a couple of seconds you can down the live guest and boot up the new guest. I separate out all signficant data from the guest partition so try to keep the actual installations under a couple hundred MB each (even that feels bloated, but hey) and this makes it simple to boot up a copy of a guest to test some change without having to copy too much I personally picked dovecot because I worried about the horror stories I read about with cyrus. However, both are clearly the two best options available for opensource solutions right now and both are used in large installations so you should be very happy with either. With regards to functionality it would appear (I don't use cyrus) that cyrus has more admin tools to do stuff, but Dovecot is built to be more hackable, for example you can easily run a script before each (imap, etc) login and hence do some very advanced stuff through that route. Plugins also appear to be quite easy to write to extend dovecot in new directions On the cyrus list they mentioned email retention policies. Now some people are going to say that this is really a job for the MTA (postfix/sendmail/etc). However, you have some plugins which might get you partly towards solving that need, but nothing out of the box which would give you a cast iron (stand up in court) kind of archiving control. However, you can get close I think Ed W
Re: [Dovecot] Cyrus vs Dovecot
On Aug 13, 2008, at 12:44 PM, Ed W wrote: On the cyrus list they mentioned email retention policies. Now some people are going to say that this is really a job for the MTA (postfix/sendmail/etc). However, you have some plugins which might get you partly towards solving that need, but nothing out of the box which would give you a cast iron (stand up in court) kind of archiving control. However, you can get close I think I noticed someone mentioned delayed expunges, which is implemented nearly identically for Dovecot using lazy-expunge plugin. Although with maildir that requires renaming the files elsewhere while Cyrus is able to just leave the files where they are. I'll probably implement the same thing for dbox format some day. PGP.sig Description: This is a digitally signed message part
Re: [Dovecot] Cyrus vs Dovecot
Mathieu Kretchner [EMAIL PROTECTED] wrote: kbajwa a écrit : Cyrus = 0 Dovecot= 100 I guess you've right but I can't post this answer at Cyrus mailing list. I'm just trying to have my own opinion of imap server and I already have sarcastic answer on the cyrus mailing list ! Stop. What's this? a) crossposing content to the dovecot mailing list b) talking about sarcastic answers when users try to help you saying that migrating from an old cyrus release to a new one is easier then migrating to a new system? c) many users here have described their running configuration to help you. d) starting an advocacy war? What are you trying to do?
Re: [Dovecot] Cyrus vs Dovecot
On 13 Aug 2008, at 10:31, kbajwa wrote: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 As someone who answers many help requests for cyrus (and I'm very far from the only one), I can honestly say I've never seen a requests from you. Perhaps you've had a lot of occasion to ask for help with Dovecot. I'm happy to hear you've gotten that help. Community is a lot of what open source software is about. As for your experience with the cyrus imapd community, perhaps your sample size is too small. Or perhaps you're thinking of paid support? Because I know very well that you can get that for cyrus imap. :wes
Re: [Dovecot] Cyrus vs Dovecot
On Wed, Aug 13, 2008 at 01:07:34PM -0400, Wesley Craig wrote: On 13 Aug 2008, at 10:31, kbajwa wrote: I think you are missing a point which is most important, i.e., what type of support Cyrus vs Dovecot offers. In my experience: Cyrus = 0 Dovecot= 100 As someone who answers many help requests for cyrus (and I'm very far from the only one), I can honestly say I've never seen a requests from you. Perhaps you've had a lot of occasion to ask for help with Dovecot. I'm happy to hear you've gotten that help. Community is a lot of what open source software is about. As for your experience with the cyrus imapd community, perhaps your sample size is too small. Yeah, there are a few of us here answering help requests, and even helping debugging in some cases. I'd be interested to see where that '0' comes from too. Still, I think Cyrus and Dovecot are the best two imap servers out there, so it's going to be a question of which integrates best with your usage pattern. For a small server, starting with no experience in either, I would probably choose Dovecot. Now that I know Cyrus inside out, back to front, warts and all - well, I'd choose Cyrus because I know how to make it play nice. It's more of a total system in itself though, that you write support stuff around. Dovecot integrates more with other tools in a unix-daemon'y way. Enjoy, Bron ( now if someone came along with a compelling competitior for SASL... )
Re: [Dovecot] Cyrus vs Dovecot
Charles Marcus a écrit : On 8/11/2008, Mathieu Kretchner ([EMAIL PROTECTED]) wrote: So here is my next environment : how many mailbox ? 5000 with adequate hardware/RAM, no problem how many users ? 6000 again - with adequate hardware/RAM, no problem Ok it seems to be great, but wath do you consider to be an adequate hardware/RAM for this kind of environment ? Concurrent access/usage will dictate if you need more than one server. what kind of access ? IMAP(s), POP3(s), webmail no problem - webmail is separate of course, use whichever webmail app you like yes, of course, this will be an other discussion :) how many server ? 2 (how to configure this with dovecot ? hearthbeat ? is it better with 1 big hardware ? ) Timo is working on integrated replication right now, but it does currently have proxy capability that I understand works well and makes this fairly painless, although I haven't used it... But I'm not sure if you are talking about 2 REDUNDANT servers (for fail-over in the event the primary fails), or 2 active/load-balanced servers... proxy would work for load-balancing, and you can configure anything to use heartbeat, no? I've explicitly post a fuzzy question to have this kind of answer ! Thanks I've a better global view of dovecot now. Database user ? LDAP Here is an other problem : we don't have uid/gid stored in our LDAP database. Do we have to configure dovecot with a dovecot specific user/group ? no problem Mail DB ? Cyrus maildir You'll have to convert to standard maildir: http://wiki.dovecot.org/Migration/Cyrus Thanks for the url, I've already seen it before and the script cyrus2courrier seems good but we wonder why you didn't mention imapsync ? (maybe because for mass migration we must have a clear password file?) Capability ? Sieve / Quota On latest version (1.1.2 currently), no problem, but a newer/full rewrite to provide native sieve capability is in progress, which will provide much better control High Performance without hacking conf files ! this is one of dovecots strongest points imo... Indeed, we bench cyrus and dovecot from scratch and dovecot seems to be realy fast ! begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
Timo Sirainen a écrit : On Aug 11, 2008, at 10:57 AM, Mathieu Kretchner wrote: High Performance without hacking conf files ! http://wiki.dovecot.org/PerformanceTuning lists some of the things you can tune, but the defaults should be pretty good (although some default settings prefer reliability/security over performance). Thanks, we'll try to test with those configurations! begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
On Aug 12, 2008, at 3:41 AM, Mathieu Kretchner wrote: Database user ? LDAP Here is an other problem : we don't have uid/gid stored in our LDAP database. Do we have to configure dovecot with a dovecot specific user/group ? Yes, one or more (for one you have mail_uid/gid settings with v1.1). See http://wiki.dovecot.org/UserIds no problem Mail DB ? Cyrus maildir You'll have to convert to standard maildir: http://wiki.dovecot.org/Migration/Cyrus Thanks for the url, I've already seen it before and the script cyrus2courrier seems good but we wonder why you didn't mention imapsync ? (maybe because for mass migration we must have a clear password file?) Most importantly imapsync doesn't preserve message UIDs. cyrus2courier is also faster since it doesn't have to write all the mail data, just rename the files. Capability ? Sieve / Quota On latest version (1.1.2 currently), no problem, but a newer/full rewrite to provide native sieve capability is in progress, which will provide much better control High Performance without hacking conf files ! this is one of dovecots strongest points imo... Indeed, we bench cyrus and dovecot from scratch and dovecot seems to be realy fast ! Benchmarking IMAP servers for real-world usage is a bit difficult. http://imapwiki.org/Benchmarking PGP.sig Description: This is a digitally signed message part
Re: [Dovecot] Cyrus vs Dovecot
Mathieu Kretchner wrote: Charles Marcus a écrit : On 8/11/2008, Mathieu Kretchner ([EMAIL PROTECTED]) wrote: So here is my next environment : how many mailbox ? 5000 with adequate hardware/RAM, no problem how many users ? 6000 again - with adequate hardware/RAM, no problem Ok it seems to be great, but wath do you consider to be an adequate hardware/RAM for this kind of environment ? Hi, we are providing Mail-Service (POP3, IMAP; either TLS or SSL) to 22000 students here at my university. There are 2 machines running as active-passive cluster with DRBD to sync the maildata. Each box is a 4 core Intel(R) Xeon(R) CPU 5160 @ 3.00GHz with 8 gigs RAM. After a tuneup for DRBD and upgrade to dovecot 1.1 average load is around 1.0. HTH Philipp
Re: [Dovecot] Cyrus vs Dovecot
Hi, we are providing Mail-Service (POP3, IMAP; either TLS or SSL) to 22000 students here at my university. There are 2 machines running as active-passive cluster with DRBD to sync the maildata. Each box is a 4 core Intel(R) Xeon(R) CPU 5160 @ 3.00GHz with 8 gigs RAM. After a tuneup for DRBD and upgrade to dovecot 1.1 average load is around 1.0. HTH Philipp Impressive ! You'll be my contact for next few months :) How many Megabyte does the datamail size ? (total and per user?) Have you tune your conf file following this link : http://wiki.dovecot.org/PerformanceTuning ? Do you have Mail data or index on a NFS server (NAS) ? Actually that the point of interest, we would like to take advantage of our NAS because it manages so well automatic snapshot and incremental backup that would be a really good security for data mail users. Does anybody have such IMAP architecture ? PS : awesome mailing list... so reactive ! begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
Mathieu Kretchner wrote: PS : awesome mailing list... so reactive ! Welcome to dovecot. :-) What i may say - you should try a dovecot and 99% of your question will expire. P.S. Please tune your mail client to make reply-to field to dovecot@dovecot.org then you write a message here. P.P.S. http://www.google.com/search?client=operarls=ruq=cyrus+DB+ERRORsourceid=operaie=utf-8oe=utf-8 -- Best regards, Proskurin Kirill
[Dovecot] Cyrus vs Dovecot
First of all : forgive me for my poor English Hello all, I've to compare cyrus with dovecot for my work. Because these are the only solutions that could fit our needs. Unfortunately I really don't know a lot about dovecot and I would like to have some of its assets. Here are the properties of the versus table I've done : dovecot cyrus Installation: Update: Migration from cyrus : Migration from dovecot : functionalities : Management : Local Delivery : availability : Security : Indexes management : NFS compatibility : Scalability : Configuration : interoperability : Sieve filter : Documentation : Quota capability : Performance : IMAP capability : So I know this can scared you, but If you have some asset for dovecot, It could be great and a lot more FAIR !! Thank you in advance for your advice. begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
* Mathieu Kretchner [EMAIL PROTECTED]: First of all : forgive me for my poor English Hello all, I've to compare cyrus with dovecot for my work. Because these are the only solutions that could fit our needs. Unfortunately I really don't know a lot about dovecot and I would like to have some of its assets. All I can tell you is that I would never touch cyrus. I heard so many bad things and read so many posts on the postfix-users and other lists that I can only recommend dovecot, which I use. -- Ralf Hildebrandt ([EMAIL PROTECTED]) [EMAIL PROTECTED] Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de It's easy to cry 'bug' when the truth is that you've got a complex system and sometimes it takes a while to get all the components to co-exist peacefully.-Doug Vargas
Re: [Dovecot] Cyrus vs Dovecot
Mathieu Kretchner wrote: First of all : forgive me for my poor English Hello all, I've to compare cyrus with dovecot for my work. Because these are the only solutions that could fit our needs. Unfortunately I really don't know a lot about dovecot and I would like to have some of its assets. So I know this can scared you, but If you have some asset for dovecot, It could be great and a lot more FAIR !! Thank you in advance for your advice. Hello, sorry for my english too. Im start migration from Cyrus to Dovecot not far ago. Im have only 500 maildirs, but... For now im can say what Dovecot is faster in IMAP. Im use my maildir with 4 emails with many many subfolders - it is much faster. Security: http://dovecot.org/security.html Migration: http://wiki.dovecot.org/Migration And so on. Many answers to your questions on dovecot.org. In this list someone post his load average grafs on *really* heavy load servers. Search it. Only thing what dovecot is not supported against Cyrus is replication, but it is planed on roadmap. P.S. Im start to hate cyrus then this happened and happened again with no answer from developers: http://lists.andrew.cmu.edu/pipermail/info-cyrus/2007-November/027889.html And this: http://lists.andrew.cmu.edu/pipermail/info-cyrus/2008-May/029163.html P.P.S. Dovecot is really on heavy development and seems to be best IMAP daemon on opensource now. And Timo help a lot for many people in this list. -- Best regards, Proskurin Kirill
Re: [Dovecot] Cyrus vs Dovecot
On Monday of August 11 2008, Proskurin Kirill wrote: And Timo help a lot for many people in this list. Confirmed. Timo (and other users) doesn't leave any (non trivial) question unanswered, wiki is full of useful info, important bugs are fixed quick (follow mercurial repo) and new versions are released often - dovecot is one of best supported open source projects I know... regards -- Marcin Gryszkalis, PGP 0x9F183FA3 jabber jid:[EMAIL PROTECTED], gg:2532994 http://the.fork.pl
Re: [Dovecot] Cyrus vs Dovecot
Marcin Gryszkalis a écrit : On Monday of August 11 2008, Proskurin Kirill wrote: And Timo help a lot for many people in this list. Confirmed. Timo (and other users) doesn't leave any (non trivial) question unanswered, wiki is full of useful info, important bugs are fixed quick (follow mercurial repo) and new versions are released often - dovecot is one of best supported open source projects I know... regards Indeed It's a good point for us that this is a big project with a lot of involved developers ! But, at present, we need to have a secure / reliable / fast with all the properties that must fit a real e-mail server in order to support our new e-mail IMAP architecture, so the question is (because we have only 2 options) Why should I choose dovecot instead of Cyrus ? Thanks begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
On 8/11/2008, Mathieu Kretchner ([EMAIL PROTECTED]) wrote: But, at present, we need to have a secure / reliable / fast with all the properties that must fit a real e-mail server in order to support our new e-mail IMAP architecture, so the question is (because we have only 2 options) Why should I choose dovecot instead of Cyrus ? Because it is secure / reliable / faster than cyrus - and *much* easier to install/configure? You'll have more chance of a specific answer if you provide more specifics as to what 'properties that must fit a real email server' means to you. -- Best regards, Charles
Re: [Dovecot] Cyrus vs Dovecot
Charles Marcus a écrit : On 8/11/2008, Mathieu Kretchner ([EMAIL PROTECTED]) wrote: But, at present, we need to have a secure / reliable / fast with all the properties that must fit a real e-mail server in order to support our new e-mail IMAP architecture, so the question is (because we have only 2 options) Why should I choose dovecot instead of Cyrus ? Because it is secure / reliable / faster than cyrus - and *much* easier to install/configure? You'll have more chance of a specific answer if you provide more specifics as to what 'properties that must fit a real email server' means to you. So here is my next environment : how many mailbox ? 5000 how many users ? 6000 what is in use now ? Cyrus what kind of access ? IMAP(s), POP3(s), webmail how many server ? 2 (how to configure this with dovecot ? hearthbeat ? is it better with 1 big hardware ? ) Database user ? LDAP Mail DB ? Cyrus maildir Capability ? Sieve / Quota High Performance without hacking conf files ! begin:vcard fn:Mathieu Kretchner n:Kretchner;Mathieu org:INRIA;Syslog adr;dom:;;2007 route des lucioles - BP93;Sophia Antipolis;;06902 CEDEX email;internet:[EMAIL PROTECTED] tel;work:04 92 38 76 67 x-mozilla-html:FALSE version:2.1 end:vcard
Re: [Dovecot] Cyrus vs Dovecot
On 8/11/2008, Mathieu Kretchner ([EMAIL PROTECTED]) wrote: So here is my next environment : how many mailbox ? 5000 with adequate hardware/RAM, no problem how many users ? 6000 again - with adequate hardware/RAM, no problem Concurrent access/usage will dictate if you need more than one server. what kind of access ? IMAP(s), POP3(s), webmail no problem - webmail is separate of course, use whichever webmail app you like how many server ? 2 (how to configure this with dovecot ? hearthbeat ? is it better with 1 big hardware ? ) Timo is working on integrated replication right now, but it does currently have proxy capability that I understand works well and makes this fairly painless, although I haven't used it... But I'm not sure if you are talking about 2 REDUNDANT servers (for fail-over in the event the primary fails), or 2 active/load-balanced servers... proxy would work for load-balancing, and you can configure anything to use heartbeat, no? Database user ? LDAP no problem Mail DB ? Cyrus maildir You'll have to convert to standard maildir: http://wiki.dovecot.org/Migration/Cyrus Capability ? Sieve / Quota On latest version (1.1.2 currently), no problem, but a newer/full rewrite to provide native sieve capability is in progress, which will provide much better control High Performance without hacking conf files ! this is one of dovecots strongest points imo... -- Best regards, Charles
Re: [Dovecot] Cyrus vs Dovecot
On Aug 11, 2008, at 10:57 AM, Mathieu Kretchner wrote: High Performance without hacking conf files ! http://wiki.dovecot.org/PerformanceTuning lists some of the things you can tune, but the defaults should be pretty good (although some default settings prefer reliability/security over performance). PGP.sig Description: This is a digitally signed message part
