Author: Lena Date: To: exim-users Subject: Re: [exim] ACL for rejecting own host in HELO
> I'm having some trouble setting up a rule in acl_check_mail to reject > remote hosts that HELO or announce their own host name with my own domain. > the rule was only triggered twice.
> The rest of the time it seemed to fall straight through to the
> acl_check_rcpt right below and performed a verify sender which failed.
> I'm not sure how to test in a way that causes the host name to appear as
> whatever I want and I'm also not quite understanding why the rules
> failed. I know I missed something. > 2015-02-20 20:47:50 H=(mail.acarver.net) [177.11.51.69] I=[10.0.0.6]:25
> rejected MAIL <cwcxk@???>: Invalid HELO
> 2015-02-20 20:47:50 H=(smtp.acarver.net) [177.11.51.69] I=[10.0.0.6]:25
> sender verify fail for <lsvbxff@???>: Unrouteable address
> 2015-02-20 20:47:50 H=(smtp.acarver.net) [177.11.51.69] I=[10.0.0.6]:25
> F=<lsvbxff@???> rejected RCPT <teste13.pop3@???>: Sender
> verify failed
P.S. I was wrong, sorry. We both missed that the miscreant's bot
changed .net to .org (and mail. to smtp.).
mail.acarver.net was rejected, smtp.* and *.org were not rejected.