Re: Recommended tool for migrating IMAP servers

2017-12-15 Thread Davide Marchi
[..] Well, I've read the dsync documentation, but this warning has me a little worried: "Make sure destination is exactly as source, deleting/reverting any changes in destination if necessary" This is when you use the 'backup' option. Dsync then makes 1:1 copy of the source. If you use

Re: Recommended tool for migrating IMAP servers

2017-12-14 Thread Sami Ketola
> On 13 Dec 2017, at 18.27, Davide Marchi wrote: > > Sami Ketola wrote:> We run all our migrations using Dovecot internal dsync. > Usually using imapc connector to connect to legacy >> platform. >> Wqmi > > Many thanks Wqmi! > Well, I've read the dsync documentation, but this

Re: Recommended tool for migrating IMAP servers

2017-12-13 Thread Davide Marchi
Sami Ketola wrote:> We run all our migrations using Dovecot internal dsync. Usually using imapc connector to connect to legacy platform. Wqmi Many thanks Wqmi! Well, I've read the dsync documentation, but this warning has me a little worried: "Make sure destination is exactly as source,

Re: Recommended tool for migrating IMAP servers

2017-12-11 Thread x9p
On Mon, December 11, 2017 9:32 am, Davide Marchi wrote: > > However, it seems that Imapsync has license issues and in fact it's not > included in the Debian repositories. > Is it to be used anyway or should be avoid? > I do not believe imapsync has license issues. Its written in perl and its

Re: Recommended tool for migrating IMAP servers

2017-12-11 Thread Sami Ketola
> On 11 Dec 2017, at 12.32, Davide Marchi wrote: > > Il 2017-12-05 07:16 Sami Ketola ha scritto: > [..] >> Trust us. We have run multiple migrations at scale of 10+ million users. >> Sami > > However, it seems that Imapsync has license issues and in fact it's not > included in

Re: Recommended tool for migrating IMAP servers

2017-12-11 Thread Davide Marchi
Il 2017-12-05 07:16 Sami Ketola ha scritto: [..] Trust us. We have run multiple migrations at scale of 10+ million users. Sami However, it seems that Imapsync has license issues and in fact it's not included in the Debian repositories. Is it to be used anyway or should be avoid? Many

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread María Arrea
    We migrated 36 TB of mail (65K users) from Sun Messaging to Dovecot using Imapsync, worked like a charm.     Regards     María

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread Sebastian Arcus
On 04/12/17 23:15, Steve Litt wrote: On Mon, 4 Dec 2017 12:53:15 -0800 (PST) Joseph Tam wrote: "Davide Marchi" writes: UW-IMAP's mailutil, imapsync, YippieMove and Larch. Whatever you use, *don't* use UW-IMAP's mailutil unless you got lots of time to

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread Sami Ketola
> On 5 Dec 2017, at 12.46, Webert de Souza Lima wrote: > > Sorry, I might be wrong about cache invalidation, indeed. What I'm sure is > that users will hardly notice any server change. > We've never had user complaints about mailboxes resyncing or anything like > that

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread Webert de Souza Lima
On Tue, Dec 5, 2017 at 4:16 AM, Sami Ketola wrote: > On Mon, Dec 4, 2017 at 9:16 AM, Sami Ketola > wrote: > >> >> With every other tool you will face end users needing to invalidate >> their local caches and >> redownloading all headers if not

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread Sami Ketola
> On 5 Dec 2017, at 10.20, Paolo wrote: > > Il 04/12/2017 17:37, Michael Slusarz ha scritto: >>> I think Davide was asking about dsync. If so, the answer is no: dsync >>> works only when both servers are Dovecot and needs some additional >>> configuration to work through

Re: Recommended tool for migrating IMAP servers

2017-12-05 Thread Paolo
Il 04/12/2017 17:37, Michael Slusarz ha scritto: I think Davide was asking about dsync. If so, the answer is no: dsync works only when both servers are Dovecot and needs some additional configuration to work through the network (see https://wiki2.dovecot.org/Replication). This is entirely

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Sami Ketola
> On 4 Dec 2017, at 19.59, Webert de Souza Lima wrote: > > On Mon, Dec 4, 2017 at 9:16 AM, Sami Ketola wrote: > >> >> With every other tool you will face end users needing to invalidate their >> local caches and >> redownloading all headers if

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Steve Litt
On Mon, 4 Dec 2017 12:53:15 -0800 (PST) Joseph Tam wrote: > "Davide Marchi" writes: > > >> UW-IMAP's mailutil, imapsync, YippieMove and Larch. > > Whatever you use, *don't* use UW-IMAP's mailutil unless you got lots > of time to kill. It is dreadfully

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Joseph Tam
"Davide Marchi" writes: UW-IMAP's mailutil, imapsync, YippieMove and Larch. Whatever you use, *don't* use UW-IMAP's mailutil unless you got lots of time to kill. It is dreadfully slow -- I used it to export some of my users' mailboxes to Gmail or other remote mail servers,

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Webert de Souza Lima
On Mon, Dec 4, 2017 at 9:16 AM, Sami Ketola wrote: > > With every other tool you will face end users needing to invalidate their > local caches and > redownloading all headers if not also all mail bodies. > > Sami > > I don't think so. Been using imapsync for large scale

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Michael Slusarz
> On December 4, 2017 at 8:46 AM Paolo wrote: > > > Il 04/12/2017 14:33, x9p ha scritto: > > > >> Can I use this tool even if I do not know the other remote server > >> typology? > >> > > sure. just need both IMAP ports reachable and valid user/pass for both > > servers. >

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Paolo
Il 04/12/2017 14:33, x9p ha scritto: Can I use this tool even if I do not know the other remote server typology? sure. just need both IMAP ports reachable and valid user/pass for both servers. I think Davide was asking about dsync. If so, the answer is no: dsync works only when both servers

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread x9p
>> Hi, >> >> I vouch for imapsync. Have used it in the past with quite a big amount >> of >> emails. >> >> cheers. >> >> x0p > > Ah, thanks x0! > welcome! > > Can I use this tool even if I do not know the other remote server > typology? > sure. just need both IMAP ports reachable and valid

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Davide Marchi
[..] Hi, I vouch for imapsync. Have used it in the past with quite a big amount of emails. cheers. x0p Ah, thanks x0! Also if you have fs access on both servers, and you are using maildir, plain rsync works just as well. Aki no, I've not fs access on both servers! :-/ If you want

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Sami Ketola
> On 3 Dec 2017, at 23.23, Davide Marchi wrote: > > Hi Friends, > I would like to ask you a suggestion: > I need to migrate a imap server to a new one and then dismiss the old one. > Reading from relative Dovecot documentation page > (https://wiki.dovecot.org/Migration), more

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Aki Tuomi
Also if you have fs access on both servers, and you are using maildir, plain rsync works just as well. Aki On 04.12.2017 00:17, Harondel J. Sibble wrote: > Imapsync for sure. Have used it for both IMAP to IMAP and IMAP to Exchange > migrations. Works great. > > >> On Dec 3, 2017, at 2:08 PM,

Re: Recommended tool for migrating IMAP servers

2017-12-04 Thread Harondel J. Sibble
Imapsync for sure. Have used it for both IMAP to IMAP and IMAP to Exchange migrations. Works great. > On Dec 3, 2017, at 2:08 PM, x9p wrote: > > Hi, > > I vouch for imapsync. Have used it in the past with quite a big amount of > emails. > > cheers. > > x0p > >> Hi

Re: Recommended tool for migrating IMAP servers

2017-12-03 Thread x9p
Hi, I vouch for imapsync. Have used it in the past with quite a big amount of emails. cheers. x0p > Hi Friends, > I would like to ask you a suggestion: > I need to migrate a imap server to a new one and then dismiss the old > one. > Reading from relative Dovecot documentation page >