I need your help to fine tuning our sendmail server. We are sending newsletters to our subscribers daily. Our actual requirement is, we need to send 25,000 emails in 2-3 hours of time. My OS and sendmail details:
-- Linux Enterprise Server 5.
-- Sendmail 8:13:8
-- Internet Bandwidth : 3Mbps
I have changed my sendmail configuration according to the site info http://www.myptsmail.com/blog/?p=75
, but not helped and it was taken 12 hours than as usual.
Rightnow, the sendmail is taking 7 hour to send out 25K emails. Please advice for tuning sendmail performance. What are the other criteria we need look at it?