The mail server has the "mail envelope" information. Gossamer Mail never sees that information, as it is removed once the mail server delivers the mail. Think of traditional snail mail, Gossamer Mail only sees the contents of what's inside a letter, whereas the postman can see the full address on the letter.

This is how BCC works, if you BCC someone, depending on your mail server, you may not see any reference to your email address in the headers, yet you still got the email. This works because the information was in the envelope.

It's not impossible, but it is definately not straight forward. We are looking at implementing this in some fashion for the next version.

Cheers,

Alex

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Gossamer Threads Inc.