> Out: 220 hippo.mlmuk.com ESMTP Postfix - ATTN: UCE Trespassers will be >pursued > In: EHLO mlmuk.com > Out: 250-hippo.mlmuk.com > Out: 250-PIPELINING > Out: 250-SIZE 10240000 > Out: 250-ETRN > Out: 250 8BITMIME > In: MAIL FROM: <[EMAIL PROTECTED]> > Out: 250 Ok > In: RCPT TO: <[EMAIL PROTECTED]> > Out: 504 <[EMAIL PROTECTED]>: Sender address rejected: need fully-qualified >address > >i was thinking of putting mlmuk.com into my HELO restriction list but wasn't >sure if this would cause any problems.
it won't, as long as all of your legit machines send correct HELO, eg: label.mlmuk.com /(^mx1\.mlmuk\.com$)/ REJECT Illegal HELO hostname, "$1" >is any one else blocking there own >domain name in the HELO restrictions. yes, this is standard practice Also block any helo hostname that contain an ip address, yours or any other. Len
