Claudio Jeker wrote:
On Wed, Feb 02, 2005 at 06:22:47PM +0100, Andre Peitz wrote:
spamcop.net is blocking mailservers when bounces arrived at spamtraps.
This means, that the behaviour of qmail-ldap will result in a listing on
spamcop.net.
Those guys at spamcop are insane. The have no clue about how mail works
and should fix their spam traps. If this is true they definitifly have a
quality problem.
http://www.spamcop.net/fom-serve/cache/329.html#bounces
Yes, you are right. There is no technical skill. My dicussion with the
deputies of spamcop was not a really discussion.
There was no interest in a discussion.
We use RCPTCHECK but user over quota bounces will go out and in worste
case to the spamtraps of spamcop.net. When this happen, the mailserver
is blacklisted. Forged from addresses in spam/virus mails are today the
normal way.
As I said it's a spamcop problem that spamcop needs to fix. A bounce needs
to be sent if anything goes wrong after the mail got queued. This is how
the mail system works.
Yes, but spamcop.net said, that mails have to be dropped during the smtp
connection with a 5xx. And when our mail server is blacklisted, our
users are not interested in who is technical correct. They will only see
that our mailserver is listed. And spamcop is used worldwide a lot of
times. And funny people think it is a good idea to block mails only on
spamcop listings.
So what to do? My oppinion is a patch similar to RCPTCHECK which check
the quota and send a 553 during the smtp connection. Any ideas why this
is not a good idea? Any other suggestions?
No good idea as it is unfeasable. To check the quota of a user way more
needs to be done than just query that ldap db. One of the task that would
be needed is switching of user and I don't like to do that in the smtp
porcess. Also it would cause way more load and is inaccurate.
Yes, that was my first idea. I realise also that this is not a good
solution.
Other suggestions. Blame spamcop. Make it public, tell everybody how
stupid they are and that the great anti-spam youngsters from spamcop have
no clue how mail works.
Im sure that people who block mails only with spamcop are not interesset
in this. It worked in their eyes. That burning down the server has the
same effect is not interessting.
So what to do when one of the largest blacklists will list your
mailserver beacuse qmail-ldap send bounces ;-)
Andre Peitz
