Cisco Cisco Email Security Appliance X1050 Information Guide
Which messaging platforms does the Cisco Email
Security Appliance (ESA) support?
Security Appliance (ESA) support?
Document ID: 118187
Contributed by Jai Gill and Stephan Bayer, Cisco TAC Engineers.
Aug 07, 2014
Aug 07, 2014
Contents
Question
Question
Which messaging platforms does the Cisco Email Security Appliance (ESA) support?
Cisco AsyncOS for Email is messaging platform agnostic. ESAs running AsyncOS are able to accept mail
from any RFC compliant MTA and relay mail for any RFC compliant MTA.
from any RFC compliant MTA and relay mail for any RFC compliant MTA.
The sending MTA only needs to support SMTP as definded in RFC 821 or RFC 2821 to be received by the
ESA.
ESA.
Updated: Aug 07, 2014
Document ID: 118187