PMDF System Manager's Guide


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2.3.4.46 MS Exchange gateway channels (msexchange, nomsexchange)

The msexchange channel keyword may be used on TCP/IP channels to tell PMDF that this is a channel that communicates with MS Exchange gateways and clients. When placed on an incoming TCP/IP channel which has SASL enabled (via a maysaslserver or mustsaslserver keyword), it causes PMDF's SMTP server to advertise AUTH using an "incorrect" format (based upon the original ESMTP AUTH specification, which was actually incompatible with correct ESMTP usage, rather than the newer, corrected AUTH specification). Some MS Exchange clients, for instance, will not recognize the correct AUTH format and will only recognize the incorrect AUTH format.

The msexchange channel keyword also causes advertisement (and recognition) of broken TLS commands.

nomsexchange is the default.


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