dovecot - Jul 2010 - Cyrus Virtual Domains: Domain migration from Cyrus

hi,

we want to migrate from Cyrus 2.x to Dovecot 1.x (!). We use the virtual
domain feature from Cyrus for a better disk partitioning:

/var/imap/domain.a/user/foo ..
/var/imap/domain.b/user/foo ..
/var/imap/domain.c/user/foo ..

In a exported skiplist DB, it shows like:

================
domain.a!user.foobar 0 int foobar at domain.a lrswipcda postmaster at domain.a
domain.a!user.han 0 int han at domain.a lrswipcda
domain.b!user.solo 0 int solo at domain.b lrswipcda
domain.b!user.yoda 0 int yoda at domain.b lrswipcda
domain.c!user.luke 0 int luke at domain.c lrswipcda postmaster at domain.c

That allows us, to separate the domains from each other on the
filesystem. The cyrus imapd.conf config:

defaultpartition: domaina

partition-domaina /var/spool/imap/domaina
partition-domainb /var/spool/imap/domainb
partition-domainc /var/spool/imap/domainc

What is the best way, to use this layout under Dovecot?

cu denny

ps. Cyrus gets this mails via LMTP over TCP from sendmail and Dovecot
1.x dont' have this service and I use postfix for smtp->
smtp-local-lmtp-> Dovecot.


-- 
Denny Schierz <linuxmail at 4lin.net>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: Dies ist ein digital signierter Nachrichtenteil
URL:
<http://dovecot.org/pipermail/dovecot/attachments/20100727/b5afcacd/attachment-0002.bin>

On Tue, Jul 27, 2010 at 10:12:54AM +0200, Denny Schierz
wrote:
> /var/imap/domain.a/user/foo ..
> /var/imap/domain.b/user/foo ..
> /var/imap/domain.c/user/foo ..
You can utilize the same directory structure with Dovecot, dependent on
whether you want to go with 'Maildir' or something else. Other
considerations are using a static userdb vs. something driven by
passwd-files, LDAP or MySQL... Choice is yours.

Also individual overrides per user are possible.
> 
> In a exported skiplist DB, it shows like:
> 
> ================> 
> domain.a!user.foobar 0 int foobar at domain.a lrswipcda postmaster at
domain.a
> domain.a!user.han 0 int han at domain.a lrswipcda
> domain.b!user.solo 0 int solo at domain.b lrswipcda
> domain.b!user.yoda 0 int yoda at domain.b lrswipcda
> domain.c!user.luke 0 int luke at domain.c lrswipcda postmaster at domain.c
ACLs are also possible.
> What is the best way, to use this layout under Dovecot?
http://wiki.dovecot.org/VirtualUsers

Depends on your authentication backend.
> ps. Cyrus gets this mails via LMTP over TCP from sendmail and Dovecot
> 1.x dont' have this service and I use postfix for smtp->
> smtp-local-lmtp-> Dovecot.
LMTP is available in Dovecot 2.x which is just around the corner and
among this brings other great enhancements.

Regards
Thomas