> On 16 Nov 2016, at 11:06, [email protected] wrote:
>
> Hello all,
>
> I am going for a dovecot director based setup (2 director+ 2 imap), more imap
> servers will be added later depending on demand/load. Presently I have
> 12000+ dovecot users with Maildir quota varying from 1 GB to 20GB. (peak hour
> IOPS 50000+)
>
> I am having 2 options in choosing dovecot version.
>
> 1) Old stable release. I.e RHEL, with prebuilt binary. This will be having
> less trouble in managing. Why RHEL still using version 2.2.10.
>
> 2) Latest release with best features and lesser known bugs. I.e CentOS7 with
> with latest compiled version. I have to be more involved if a bug is found.
>
> I will prefer a less admin work after the setup, with all/most features
> working.
>
> If you have a recent similar setup/dovecot gurus, Pl. suggest.
>
> With thanks & regards,
>
> --
>
> Soumitri Mishra
> http://home.iitk.ac.in/~soumitri/
Hi,
Running since about 6 month a new setup with 2 directors and 12
IMAP/POP3/LMTP/Sieve servers for mail storage (Maildir), to handle 500K+
users, all straight of CentOS 7 (good old yum and dovecot 2.2.10). It works
very well, install is straight forward, event though it needs a bit of
optimisation for this kind of traffic. Each user is assigned an IP for the
redirection, which dovecot handles very well. And the deployment of new storage
machine can be done in less than 30mn.
I didn’t have any problem with bugs up to now. But knowing that most access is
done via a webmail interface (Roundcube) or POP3, we are not confronted with
specific clients and IMAP problems you see now and then.
Hope this help. Regards,
Thierry
