On Thu, 16 Aug 2007 at 13:08 +0200, [EMAIL PROTECTED] confabulated:
also sprach Jeff Chan <[EMAIL PROTECTED]> [2007.08.16.1125 +0200]:
The two do very different things. MTA blacklists are direct
rejection of incoming smtp connections by the MTA (in this case
postfix). URIDNSBL is a SpamAssassin check of web sites in
message bodies. Specifically it checks message body URIs against
sbl.spamhaus.org, SURBL.org, etc. Best practices is probably to
use both. Disabling either one will let a lot more spam through.
I disagree. You can disable those RBLs in SA which are already in
use at the postfix perimeter. Postfix will have rejected all
matching mail, so SpamAssassin would never find a match.
A match could possibly be found for received headers not in the trusted
path. I believe Postfix only checks the server IP that handed the message
off.
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