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softer the greylisting delay restriction

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A lot of legit mail servers try again between 200 and 285 seconds, then
3 hours later. Why? RFC is not strict about retry timer so postfix and
other MTA have their own intervals. To fix the problem of receiving
these e-mail really latter, I reduced the delay of postgrey to
180 seconds (default is 300 seconds).
This commit is contained in:
Xoib 2015-05-19 11:53:10 +02:00
parent 13093f1732
commit 11546b97bb
1 changed files with 6 additions and 1 deletions
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7
setup/mail-postfix.sh
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@ -171,8 +171,13 @@ tools/editconf.py /etc/postfix/main.cf \
# Postfix connects to Postgrey on the 127.0.0.1 interface specifically. Ensure that
# Postgrey listens on the same interface (and not IPv6, for instance).
# A lot of legit mail servers try to resend before 300 seconds.
# As a matter of fact RFC is not strict about retry timer so postfix and
# other MTA have their own intervals. To fix the problem of receiving
# e-mails really latter, delay of greylisting has been set to
# 180 seconds (default is 300 seconds).
tools/editconf.py /etc/default/postgrey \
POSTGREY_OPTS=\"--inet=127.0.0.1:10023\"
POSTGREY_OPTS=\"'--inet=127.0.0.1:10023 --delay=180'\"
# Increase the message size limit from 10MB to 128MB.
# The same limit is specified in nginx.conf for mail submitted via webmail and Z-Push.