WSA - M390 - S390s Gateways - SMTP

[nexusrouter]

Hello Fellow Cisco Guru's

I would greatly appreciate your input and expertise regarding this issue.

We have a web proxy in the form of a Web Securtiy Appliance *M390 - Management, & *S390s - Acting as
Primary & Secondary Gateways, Our LAN is going through these for HTTP/HTTPS traffic and the
Identification Policies have been setup for specified IP segments.

The servers internet browsers have a PAC file pointing to the internal interface of the WSA's, can I
allow port 25 through the WSA's ?

I can easily allow port 25 out of our firewalls, however on the WSA's what is exactly required ?

Is this in fact possible for the WSA's to allow SMTP traffic for a server?
Are more licences required?

Your expert input is most welcome...
I would accept the best solution as always

[balaji.bandi]

high-level WSA only does Web Traffic Filtering, Not sure what is the requirement here.

There is a product ESA that does Email Security.  ( PAC file or WPAD only for Web traffic right ?)

[nexusrouter]

Hello..

The requirement is to allow port 25 to a select few of Servers in our LAN segment and how I would allow this via the WSA's? (If at all possible)

[nexusrouter]

Anyone has any more input on this?

I welcome any information on this