Re: Stopping "machine gunners" - not really a
Dennis Wynne <[email protected]> Thu, 16 Mar 2006 17:09:00 -0600
| Newsgroups | gmane.mail.spam.greylist.user |
|---|---|
| Message-ID | <[email protected]> |
===== Original Message from [email protected] (Greylisting Users and Developers Discuss) at 3/16/06 3:51 am >> I'd be curious to know about your results if you put this into your >> production environment. > >It seems to be a good idea, but I'm not sure about the future. > >New MTAs (e.g. sendmail X) tries to aggregate messages for the same >destination (same recipient domain MX) and send them in the same connection. > >Limiting the number of messages per connection is also a **BIG** problem > for mailing lists doing things like VERP. I'm talking about normal >mailing lists not spam/bulk mail distribution. > >Jose-Marcio > I added the patch, tested, and now have the code in production with a default of 2 mail commands per connection. After 3 days it has only been hit one time by a legit mail server (good old SWA, who never retries). It has been hit by a fair number of spammers. So I will leave it in place and if I start seeing problems I can add rules to allow more mails for problem servers, raise the default limit, or take it back out. For now, it has cut down the spam a little bit more so I am happy. Dennis