On 30.11.07 06:06, Ben Spencer wrote: > Some sendmail milters due look at that banner. And perform lookups on it. > One which comes to mind is milter-spiff (SPF checks). A misconfiguration > host with misleading banner information may also contain other > misconfiguration which, while may not allow spam, may cause some MTAs to > reject the message.
they are rejecting what? are they rejecting client if HELO command does not match reverse lookup on connecting IP? if so, that's clear violation of RFC2822. You can score. You can reject because of other reasons (and rejecting because someone's trying to fake your mailserver is good). But not just because the HELO is not what the reverse lookup says. -- Matus UHLAR - fantomas, [EMAIL PROTECTED] ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. 42.7 percent of all statistics are made up on the spot.