On 12/17/2012 08:02 PM, Rajesh M wrote:
hi
i run an email server set up with large number of users ie around 5000
with lots of data - around 3.5 tb
i use qmail pop3 and dovecot imap.
the issue i face is that many users use both webmail and pop3
and they store emails in their inbox
now many times when they download via pop3 their entire inbox starts
downloading again.
also due to numerous such pop3 connections the server sometimes gets loaded
also in one incidence i found over 50 pop3 sessions of the same user - i
had to manually kill these.
question 1
-- i thought that pop3 protocol means only one login at a time --- how
does qmail pop3 allow multiple logins ?
question 2
is there a way to restrict email download by various pop3 clients to only
new mails or emails for the last 3 days.
i know a few other companies who do that -- they allow download of emails
only upto the last 15 days.
is there any similar solution with qmailtoaster ?
rajesh
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To begin with, I don't know the answers to your specific questions. It
sounds as though qmail-pop3d is having a problem keeping track of what's
been downloaded.
I would recommend switching to dovecot for pop3. While I don't know if
dovecot's pop3 can restrict based on a number of days, I expect that it
would be much more reliable in its operation. I think that switching
from qmail-pop3d to dovecot pop3 will be pretty straight forward,
especially since you're already running dovecot for IMAP.
Someone else here might have more insight into this. Anyone?
FWIW, QMT will be using dovecot for imap and pop3 in a future release,
but I can't say when to expect this to happen. By migrating to dovecot
now, you'll be ahead of the game.
--
-Eric 'shubes'
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