On 16.3.2012, at 19.49, Kelsey Cummings wrote: > On 03/16/12 06:07, Timo Sirainen wrote: >> Maildir isn't very good for POP3, especially if the POP3 clients delete the >> mails after download. With Dovecot you could look into switching to >> multi-dbox format, which would have much better performance. > > Timo, can you explain why Maildir isn't a good for POP3 in this context?
Compared to mbox/mdbox: It needs to read and delete multiple separate files, which is typically much slower than reading and deleting a single file. > Another thing our existing POP3 servers did was batch all of the deletes > until after the +OK... was returned from quit. This doesn't reduce server > load but has the impression of creating faster response times to the clients. You mean deleting the messages after +OK, instead of before? Does it really make a difference?.. Dovecot can reply with -ERR to QUIT if deletions failed for some reason.
