I've got a problem on a client's router regarding SMTP. The router is causing some SMTP transmissions to time out, and so I've changed the "inspect" option in the firewall to simply "pass".
However, having made the change in Cisco Config Pro, obviously something has gone wrong because now SMTP traffic simply fails in both directions (external &gt; router &gt; server and server &gt; router &gt; external). This means that something in the configuration is amiss - what is it??? I've examined the config myself but can't see what is going wrong.