Kanwar Ranbir Sandhu wrote: > Hi Everyone, > > My CentOS 4.4 mail server is having problems sending mail after updating > it to 4.4 Before the update, I did not have any problems. > > My ISP requires that email clients must authenticate to their mail > servers before mail can be sent out. I setup smtp auth to get postfix > to relay mail through the ISP's mail servers. Here's my config: > > main.cf > -------- > relayhost = [smtp.broadband.rogers.com] > smtp_sasl_auth_enable = yes > smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd > smtp_sasl_security_options = > > sasl_passwd It's late and I've had a long day, so forgive me if I overlooked this from someone else mentioning it. Have you checked the permissions on the sasl_passwd and sasl_passwd.db file? When I updated today, one machine stopped working sending mail, and the other one was fine. For me, I found the relayhost commented out, and I have no idea why. On the working machine, everything was fine. Given the strange happenings of updating today, I'd check the permissions on the sasl_passwd files. They should be 600. If that doesn't work, did you simply try to regenerate the sasl_passwd.db file after the permission is correct? postmap hash:/etc/postfix/sasl_passwd The last update from 4.2 -> 4.3 made my relaying stop working, and all I had to do was regenerate the password file and life was good again. Whatcha think? Max