Mail Transport System Professional--Open Relay Hole

What: Mail Transport System Professional is a RFC compliant mail server
for Windows.

Who: http://www.mtsprofessional.com/

Problem: Open relay hole when forwarding all outgoing mail through an ISP.

When configured to forward all outgoing mail through an ISP MTS Pro will
accept and forward all messages that are claimed to be from a local
domain as specified in the MAIL FROM:<…> verb of the SMTP
conversation regardless of point of origin.

All versions to date are affected.

Fix: MTS Pro is a pay for play solution, please contact the vendor for
an upgrade. The issue has been resolved.

–
Craig Morrison
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http://pse.2cah.com
Controlling pseudoephedrine purchases.

http://www.mtsprofessional.com/
A Win32 email server that works for You.