Re: suppressing DSN postfix
bottom posting 'cause I'm kwel
Mike Bird wrote:
On Mon July 7 2008 15:16:12 Dan MacNeil wrote:
We're running postfix
Our primary mail server was off-line for 4 days. (We were at the mercy
of state employees who don't work holidays)
24 hours into the problem , we setup a backup MX w/ only filtering being
the postfix relay_domains parameter.
Our primary (and ordinary only) mail server rejects SPAM and viruses @
As I release mail in 20 message chunks from the 3000 message backlog on
the secondary , I'm generating a good bit of backscatter.
Is there any easy automatic way to move DSN (delivery service
notification) messages into the hold queue on the secondary so I can
deal with them at my leasure?
Am I explaining the problem clearly enough ?
I hope there's a clean solution, but if not you could temporarily block
outbound SMTP (e.g. with iptables), process the backlog, then use some
grep/awk magic to purge the backscatter from the mailq.
I think I have it going.
# In /etc/postfix/main.cf
# apply checks to bounce and notify
internal_mail_filter_classes = bounce notify
# use these body checks
body_checks = regexp:/etc/postfix/body_checks
# in /etc/postfix/body_checks
/5.7.1.*Your message looks like SPAM please contact intended recipient/
HOLD move spam backscatter to hold queue
/ 550 Virus Detected;/
HOLD move backscatter virus to hold queue