nanog mailing list archives
Re: blocking annoying 'bounce mail' "feature" from customers use.
From: Jeroen Massar <jeroen () unfix org>
Date: Wed, 25 May 2011 18:18:39 +0200
On 2011-May-25 18:09, Eric J Esslinger wrote: [..]
Does anyone know of a way for me to block the following, using postfix, either via refusing to accept the mail or by dropping it in /dev/null: Mail from <> or postmaster that originates within our customer IP blocks/is sent using authentication at the submission port and/or that does not have a valid local recipient.
http://www.postfix.org/header_checks.5.html But you should be lucky your customers are actually using your SMTP relay in the first place instead of just bouncing directly to the target MX. Greets, Jeroen
Current thread:
- blocking annoying 'bounce mail' "feature" from customers use. Eric J Esslinger (May 25)
- Re: blocking annoying 'bounce mail' "feature" from customers use. Seth Mattinen (May 25)
- Re: blocking annoying 'bounce mail' "feature" from customers use. Jeroen Massar (May 25)