Karl Schmidt wrote:
>I've run into the case twice now: where the blocking list prohibition
>message, instead of going back to the sender, is intercepted by the ISP and
>a different message is given back to the user. (Instead of - "your mail
>server is on a SPAM senders list" they get a message saying that there is
>no such user at our domain.)
>
This is the MTA on the other side being "creative" about the 550 error.
Mostly seen with (big surprised pause here) M$ crap. They think 550
means no such user and will replace your carefully crafted message with
some internal blurb.
Which only goes to prove why these systems were on a blacklist to begin
with. ;P
Regards,
C. Balzer
--
Christian Balzer Network Engineer Engineering
chibi@??? Exodus Communications K.K.
Phone: +81 3 4354 0290 FAX: +81 3 ?? http://www.gol.com/
