Hi all, i have a problem with my sendmail in one of my linux boxes. To add to the woe, i am not familiar at all with sendmail. Let me explain a little bit about our setup.
Previosuly it was working fine wihtout firewall, yes i know the first culprit that pops into the mind is the firewall but i have allowed ports SMTP and port 110 from external (untrust zone) to internal (trusted zone) and from trusted zone to untrusted zone, the policy is ANY. I don't know what else i should allow. Let's put firewall aside first. On the mail setup, my servers do not belong to any domain, and we do not have an internal domain name server but we point to an external DNS. When i ping www.yahoo.com
, that name can be resolved. Let's say my web server is called www-04 and i want to send to another web server in the same segment called www-03 to a user called sy. If i execute a command of mail sy@www-03, the error message is unknown user. Am i supposed to put the web servers in some domain? Can it work without any domain? What basic setup should there be for the servers. I can't send out to another domain called abc.com too. For example, if i want to send to firstname.lastname@example.org
, it says connection refused or the domain name is invalid. ANy idea? Any suggestions?