jittinan suwanrueangsri wrote:
Dear Noel Jones
In our environment
1. a user can not connect to other mailserver directly such as gmail,aol
etc. except our mailserver.
2. a user have right to use his/her other domain sender (aol,gmail) in
message which have to relay via our mailserver.if our policy allow user
to send only our sender domain we can authenticate his/her right but it
's impossible to know which sender is his/her account in gmail or aol.we
can not connect to their database .
3.a user need to use dynamic ip address so we can not create
allow/reject policy by source ip ,dnsbl checking or other technique base
on source ip.
4. our mailserver is in situation same as previous post(retry
problem).There are too many emails are pending in mailserver so it
affect to other email user.email sending process is slow down because of
unnecessary retry.we sure these messages are bad .
are there any solution to this problem?
Please don't top-post.
- if you don't want users sending so much mail, use a policy
service with per-user rate limits.
http://www.postfix.org/addon.html#policy
maybe this one:
http://policyd.sourceforge.net/
- if you have lots of mail in your queue that you're sure will
never be delivered, remove it with postsuper -d. There's an
example on the man page showing how to delete multiple messages.
http://www.postfix.org/postsuper.1.html
--
Noel Jones
