Restrict Outbound SMTP Traffic

[rmwhite59]

I need to restrict outbound smtp traffic to internal host 192.168.1.12 I have applied the following but no success:

access-list outgoing permit tcp host 192.168.1.12 any eq smtp

access-list outgoing deny tcp host 192.168.1.0 any eq smtp

access-list outgoing permit ip any any

access-group outgoing in interface inside

[acomiskey · Accepted solution]

Change...

access-list outgoing deny tcp host 192.168.1.0 any eq smtp

to

access-list outgoing deny tcp 192.168.1.0 255.255.255.0 any eq smtp

[rmwhite59]

That worked, thank you much!