[Dovecot] Benchmarking: Dovecot vs Courier. Courier wins as POP3 server

Timo Sirainen tss at iki.fi
Thu Jan 17 06:23:29 EET 2013

On 17.1.2013, at 1.47, Alexandr Sabitov <alexandr.sabitov at netregistry.com.au> wrote:

> I do not see anything else to tweak in Dovecot to increase POP3 performance. Can we all have some tips to improve it please ?
> mail_fsync = always

Courier POP3 does no fsyncing. Although I'm not sure how much difference it makes with NFS.

> mail_nfs_index = yes
> mail_nfs_storage = yes

Both of these are unnecessary and slow things down.

Also you should add:

pop3_no_flag_updates = yes

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