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Sendmail speedup

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rincewindis

Programmer
Mar 15, 2007
3
SE
Hello all,

Im running debian 3.1 and i've got this issue with sendmail.

I'm configuring a SMTP server for delivering mails for a website that has over 10000 members. And the smtp server is for mail newsletters for these members.

I've installed the standard sendmail packages (through apt) and configured it to be an SMTP server for relaying mails. A firewall denies everyone that tries to connect to that server except for the server that is mailing.. And all of that works fine.

When I then start mailing it takes so long time (100 messages in 111 s) and for doing that 10000 times, well.. that time is almost over 2,5 hours. Thats not acceptable.
What i've noticed is that the smtp server checks the sender email if it exist all the time for each mail the server sends. And that takes a lot of time.
Does anyone know how to switch that off in sendmail?

Does anyone good out there knows howto speed up sendmail some more?

Thankful for a great answer=)

Regardz,
-- Rincewind
 
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