We're setting up a smart-host mail router to just handle qmail scanning. The mail will then go to the appropriate mailserver where spam filtering will be done and the mail dropped into vpopmail accounts.

We get about 50-60K spam emails per day that are addressed to real domains but non-existent users. We need to be able to reject emails to non-existent users at the entry to the smart host mail router so that we don't waste time virus scanning them or delivering them to the mailservers. The checkuser patch has the functionality to accomplish this as long as we setup a mirror of vpopmail on the smart-host mail router. So we'll use the checkuser patch and setup domains and users with vpopmail on the smart host mail router so that we can reject email to non-existent users. We'll write some programs to keep vpopmail on the smart-host mail router in sync with the vpopmails on the mailservers.

Of course if the checkuser patch could consult a mysql database instead it would be cleaner but gotta live with what we have. If anyone has a better solution let me know.

At 03:17 PM 1/14/2004, you wrote:

Can you explain better what are you trying to do?

How the "patched qmail-smtpd" is run?

Have both servers the same domains declared and the same "users data base"?


At 14/01/2004 14/01/2004 -0500, Jeff Koch wrote:

We trying to setup a Smart Host mail router but kludge the checkuser patch and vpopmail to verify the domain and user name before smpt'ing the mail to the appropriate mailserver. However, we're getting stuck - the server keeps trying to deliver the mail locally even though we have smtproutes setup.

We'd like to keep the junk from being pushed through the smarthost (we get about 60K messages a day to non-existent usernames) - and the checkuser patch seemed to be the answer. We thought that having smtproutes setup would prevent local delivery.

Does anyone know of any other patches or have any thoughts on how this could be done?

Best Regards,

Jeff Koch, Intersessions

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Best Regards,

Jeff Koch, Intersessions

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