Project Gamera: disable qmail failure notices (backscatter)

breun · Unread post by **breun** » Mon Apr 14, 2008 5:24 am

I set up a box with Project Gamera as a backup MX for a couple of Plesk servers. We setup our Plesk servers to reject mail to non-existent mailnames, but a lot of spammers are targetting the MX with the highest priority number (backup MX) and qmail on Project Gamera does send failure notices (NDR, DSN, whatever you call them) in reply to mail to non-existent mailnames.

I'd like our Project Gamera box not to be a mail server that sends out backscatter. I need to clean out the queue daily because it's filled with failure notices to non-existent mailnames, but I would rather not send out failure notices at all from our Project Gamera box. http://spamlinks.net/prevent-secure-bac ... ject-qmail lists a couple of different patches for qmail. Anyone here already tried something like this on Project Gamera?

Unread post by **scott** » Mon Apr 14, 2008 11:54 am

I got the patches for it (called bouncecontrol) into qmail-1.03-38. The package still needs work, if someone wants to take a crack at it. Its in http://3es.atomicrocketturtle.com/packages/qmail/

breun · Unread post by **breun** » Mon May 05, 2008 6:58 am

Looks like the backscatter problem is growing and growing. I'm manually removing thousands of failure notices every day from our Project Gamera queue, but still that server is contributing to the backscatter of course.

http://it.slashdot.org/article.pl?sid=08/05/05/0452257

Unread post by **scott** » Mon May 05, 2008 9:23 am

Made any progress with the qmail rpm?

breun · Unread post by **breun** » Mon May 05, 2008 11:24 am

No, I spent a little time looking at the spec file, but I'm not much of qmail hacker yet.