Sendmail - fight against the spammers
I am new to Slackware and sendmail.
1) I want to make sendmail more resist from spammers. Can You suggest some lines in sendmail.mc (My server is iauto.lv) Can I do, that my server recieves mails, but users cannot send mails with SMTP through my server?
2) Many mailservers returned mails, because I have no reverse DNS. What I must to do?
Last edited by XavierP; 08-03-2010 at 11:28 AM.
Reason: Moved to Security