Re: [Dovecot] Migration to Dovecot
How much mail do you have to migrate? Do you convert mbox to Maildir? Please, let us know how did it go. Good luck with it!!! FiL Frank Bonnet wrote: Hello all Tomorrow is the day , I'm gonna migrate all our mailboxes and imap folders from our old mailhub to the new one. In the same time I will migrate from UW to Dovecot , I've read all the stuff about it on the Dovecot web site. I have one question , do I have to care about the .imap cache directory created by Dovecot in any way or will it be all automatic when starting Dovecot ? Many thanks
Re: [Dovecot] Running a dovecot IMAPS server
Timothy Murphy wrote: I don't use KMail on my desktop, except as an experiment, but when I do there do not appear to be any problems. My Local folders are kept in directories ~/Mail/Folder1/[cur,new,tmp[/ and are not seen by IMAPS. My IMAPS folders are kept in directories ~/Maildir/.Folder2/[cur,new,tmp]/ and are not seen my kmail. If Local folders are under ~/Mail/ - this is OK. But you were saying your local messages are under ~/Maildir/ - the same as dovecot-accessed. And this is wrong. This might be working fine, but still, this is wrong. FiL
Re: [Dovecot] Running a dovecot IMAPS server
Charles Marcus wrote: 1. No proper 'Signature Manager' (yes, I've seen and used the Signature extensions (Signature, Signature Switch, etc), but they still require you to manually create the sigs first. This is a *glaring* lack in my opinion... 2. Monolithic message storage... this is still a biggie to me, but I can live with it... I know this is totally unrelated to this topic, but... Is there any extension to create and use templates? I don't like full name wrote: in my reply messages and would prefer some custom templates, that would be different for different accounts. Thanks, FiL
Re: [Dovecot] Migration woes from tpop mbox to dovecot maildir
Chris Richardson wrote: I was hoping some one might be able to offer me some advice on a little problem I have. I am looking to A. move from mbox to maildir B. looking to move from tpop to dovecot to bring both pop and imap under the same program. anyways the problem I am having is this tpop3d mbox uses MD5 sum of the mailbox headers in hex which is option %m in the uidl section but the problem is when dovecot convert plugin runs and makes in a maildir it fails to find the md5 of this because it is only used for mboxs. if I change this from %m to %Mf it downloads every message on the clients computer which is not desirable. I was thinking only options i have is to allow it to download all them mail and or write a script to convert it to maildir or another pop servers uidl. but i dont know much about how other pop servers generate there headers. so I was hoping maybe some one has done something similar to this or could offer some input. thanks -Chris I have the very same problem. The only difference is that I have already migrated to dovecot and using mbox for both pop3 and imap. Am still looking for the good solution to migrate to Maildir without making my clients re-download all their mail (they won't get dups with imap, but downloading gigabytes of mail isn't good idea either. Timo suggested writing a script that would create dovecot-uidlist files for every mailbox with old-style (%m in your case) UIDs during migration and that makes perfect sense to me. However I'm really bad with programming and cat rely on my own script for such an important task. P.S. not sure how dovecot handles pop3 UID's. In my case I need preserving UIDs in imap-to-imap (mbox-to-Maildir) migration. FiL
Re: [Dovecot] mbox vs maildir
The last time I tried to convert from mbox to maildir, things got pretty botched up, no data loss, but it wasn't pretty. :-) just because you got it wrong doesn't make it's hard. you probably didn't take enough time to get it right. Well, if you know the RIGHT way - just share it with the rest of us. I was asking Timo before and as far as I understood - there is no way of converting mbox to Maildir without losing message UIDs. And given that we already have huge mailboxes, that means that every user, connecting to the server after the conversion will need to redownload all the messages and delete all the messages in the local cache. Just imagine that user with ~5Gb of mail across 5-10 folders connect from home not-so-fast DSL line to check email and has to wait until the client rechecks all the mail No, this is not right. Exactly as Don Russell wrote - no data loss, but it isn't pretty. And this is the only reason I don't migrate to Maildir. I really want to do it, but this is not something I can do to my users. FiL
Re: [Dovecot] Converting mbox to Maildir, all prior read messages are downloaded as new
Timo Sirainen wrote: On Fri, 2007-05-25 at 14:36 -0400, FiL wrote: This is not only about POP3, as far as I can tell. If you converting mbox to Maildir (dovecot to dovecot) - UIDs change. And if you have your client set to cache all the messages and you have over 1Gb in your mail... well, it will be transferring all your mail again. Deleting the old one (as it is not on the server anymore) and re-downloading new ones. Right. But it's not as bad as with POP3 where the messages are downloaded as duplicates. It's pretty bad if you trying to check your mail over the slow connection (and some users do that). Also at least 1/3 of my users have 100Mb just in the inbox and much more in other mailboxes. And I know, that server just wouldn't handle the load the first day after migration. I have all my mbox-es in /raid/mbox/%u I have set convert_mail = mbox:/raid/mbox/%u:INBOX=/var/mail/%u in the dovecot.conf. But for some reason the folder with mail doesn't get renamed after conversion. Is that the way it should be? And the destination isn't /raid/mbox/%u? It should have renamed the %u to %u-converted. The destination is /raid/Maildir/%u/ but the original folder doesn't get renamed. I will play with it a little more and let you know the details. FiL
