Knowledge Base

How to turn on/off SMTP transparency


How to switch SMTP transparency on/off in a registry.


The SMTP Standard requires the single period (dot) at the beginning of the line to be replaced by a double period (dot) in TNEF part of the message. In certain cases this features needs to be turned off when the users has a different software installed on Exchange that makes our program misinterpret the message.

In order to resolve this, you need to make a change in the registry by adding the following entry:

NoSmtpTransparency DWORD 1

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