Hi, I have a PIX 515E and a Windows SMTP Server in a DMZ, and I need send to some customers encrypted emails using TLS. I read in a Cisco documentation that I need enable it if use inspect esmtp:

policy-map type inspect esmtp esmtp_tls_enable

parameters

allow-tls

!

policy-map global_policy

class inspection_default

inspect esmtp esmtp_tls_enable

Now, when I do it, TLS work fine and I can send encrypted email but for unknown reason I can't send o receive non encrypted emails from other customers.

We can help me with this issue?

Thanks,