Hi Matthias, on Thu, 4 Dec 2003 11:29:03 +0100 you wrote:
[yahoo bounces]
> 123noop444@???
> SMTP error from remote mailer after end of data:
^^^^
Note
> So what are the yahoo-MTAs doing?
Nothing new, really. They do some rejections at RCPT time, but for
whatever reason (anti-dictionary-attacks?) do a lot at DATA time in which
case you're right, callouts won't help you. They have been doing this for
a while, though.
Tim