On Thu, Dec 04, 2003 at 11:29:03AM +0100, Matthias Lewandowski wrote:
> the last days I recognized a lot of frozen bounces
> to yahoo.com addresses.
[...]
> So what are the yahoo-MTAs doing? Accept every null-sender mail, making
> callouts impossible?
[...]
They usually simply reject after DATA instead of after RCPT TO, so
callouts generally don't work. However if a yahoo account is misused
for spamming and they start getting $bignumber of bounces, they reject
_this_ account after RCPT TO, so yahoo-callouts are not totally
useless.
cu andreas
