> On such n/w's I'am able to send mail from [EMAIL PROTECTED] to [EMAIL PROTECTED] > using low level SMTP chat from home by telnet to port 25 to one of copstop.com's > relay servers facing the internet. Where'as i'am not either of the two.
If it is only a relay server and not an MX then it should not be accepting connections from the internet. > > The mail received by abc looks original but shows > > from : [EMAIL PROTECTED] > to: <> undisclosed recipients > > in the header and logs. That is because you did not put the To: header in the DATA part. > Is there a way out where I can stop > > mail from: [EMAIL PROTECTED] > > only when the relay server is accepting mails from other servers.(incoming) If it is only relaying mail to the internal servers (MX) and not relaying for them,this can fix it: add an entry to /etc/mail/access From:costop.com REJECT If it is relaying mail and also acting like an MX, then maybe you can check this page out http://www.sendmail.org/m4/anti_spam.htm -- Clifford -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
