In message <[log in to unmask]>, John C Klensin writes:
>     RCPT TO:<[log in to unmask]>
> Use of
>     RCPT TO:<@x.y.z:[log in to unmask]>

John, this example shows that you misunderstand the situation.

AOL is rejecting the mail at the MAIL From: command when the SENDER contains
a source route, i.e.

    MAIL From:<@elgreco.border.com:[log in to unmask]>

I have no problem with people being unwilling to act as mail relayers to
arbitrary domains. I object *strongly* to them *denying* me the ability to
use mail relayers outside of their administrative purview.

--
Harald Koch <[log in to unmask]>