Hello,
In your inside interface access-list, add the line that enables the
WebServer to send email outside.
Access-list any eq 25
This will override the default deny policy and allow you to send emails from
the WebServer.
Example:
If the webserver ip address is 192.168.1.100, then,
Access-list inside_access_out line 1 permit tcp host 192.168.1.100 any eq 25
Hope this helps.
Regards,
NT