Hi, I just installed a Redhat 9 for email server with sendmail. In order the clients can send theirs mails from outlook i comment the line dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA') and open the port 25 for SMTP in the firewall. My problems began the next week. The mail are being blocked or could be delivered. I think i make a newbie mistake... I don´t know if i must close the port 25 or is a sendmail configuration problem, i don´t know how to check if the server or domain is in a blacklist. I really appreciate, if someone could me advise me. Mario __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list