Hi,

I'm wondering if anyone has some performance tuning recommendations for Dovecot. We are currently building a series of department e-mail/imap servers and we will be replacing our central core in the coming summer. The department servers are relatively small 100-200 users and the central server is modest - around 7000 accounts. They will be using local filesystem or SAN for the backend storage.

So far, enabling hard links seems to be a big win. I'm curious if there are others out there that people have found useful. I am considering putting the indexes on memory disks but I haven't scoped out the requirements for the central system yet (i.e. it is unclear to me how large the index will be for approximately 13 million messages take take up roughly 800GB of disk space.

Any pointers are greatly appreciated.

Sincerely,

---Jack Stewart