The From header is normally set by the program that creates the message, in this case Pegasus Mail, so that's where you should look for the sender address. If you can't find it, please post to the Pegasus Community Support forum about it.
/Rolf
<p>The From header is normally set by the program that creates the message, in this case Pegasus Mail, so that's where you should look for the sender address. If you can't find it, please post to the Pegasus Community Support forum about it.</p><p>/Rolf&nbsp;</p>