Need advice on new mailserver and spam
Andy Green
andy at warmcat.com
Mon Jun 6 15:29:57 UTC 2005
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Bob Brennan wrote:
| My question is - long term - is it better to set up the mailserver to
| reject all non-mailbox emails to cut down on the incoming processing
In my experience, I had an immediate reduction in virus emails by
allowing only specified usernames on the left hand side of the email
address, and I did not miss any genuine emails by this AFAIK. So I
really recommend it.
I don't think you should be sending "rejection notices" at all, but
simply not accepting obviously bad mail with a 5xx reject code. A
genuine user will be notified by HIS email server that there was a
problem. A spammer will just give up after a few tries. (I mean give
up until the next spew of junk, not give up for good unfortunately).
- -Andy
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
iD8DBQFCpGv1jKeDCxMJCTIRApwAAJwOdXa4rEKcVNp/RrE/4H6etVoTJQCfUcOa
O9yVlqOSf9BaOyL//9XlBxs=
=nWC5
-----END PGP SIGNATURE-----
More information about the users
mailing list