can't send emails to outside domians

[ullalla]

I am able to send the domains internally on the server but not able to send any outside domains.

Any suggestion this?

[kuldeep_]

Check email logs /var/log/exim_mainlog which will provide you with the exact cause of the problem.

Also If you have firewall installed on server, check if firewall is blocking you from sending email outside.

[ullalla]

Any other possibilities ?

[devendradb]

Hi,
try to install first pear mail and smtp packages on cpanel then using mail class of pear mail package send the mail to outside domain with smtp authentication as true. I was also facing same problem earlier, but now I had fixed it. *check whether your web server support smtp or is it enabled.

[vanessa]

What do your mail logs say?

[eth00]

First guess would be dns and second a firewall. Are you able to ping google.com?