Fake-ID

["Siamak Farah" <sia @ infostreet . com>]

A client of mine asked:

One question, is there a security feature that checks that only I can send
email to it? I will be sending from Eudora alias XYZ@XYZ.COM.... what is
stopping somebody else from configuring the same way and also sending?

The only thing I could think of, was to have the authorized sender be a
secret email address and have all the email go out as XYZ@XYZ.COM. So, if
someone fakes, we would get a bounce message.

Any thoughts on this?

Siamak Farah