I changed the last column in bounce line to bounce (it used to be discard)
in master.cf.
Now I get NDRs every minute or so because of those retrying emails. What
next?
Here is my master.cf:
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master").
# Do not forget to execute "postfix reload" after editing this file.
#
============================================================================
==
# service type private unpriv chroot wakeup maxproc
command
# (yes) (yes) (yes) (never) (100) +
args
#
============================================================================
==
smtp inet n - n - -
smtpd
#smtp inet n - n - 1
postscreen
#smtpd pass - - n - -
smtpd
#dnsblog unix - - n - 0
dnsblog
#tlsproxy unix - - n - 0
tlsproxy
submission inet n - n - -
smtpd
-o cleanup_service_name=cleanup_submission
-o syslog_name=postfix/submission
-o smtpd_tls_security_level=encrypt
-o smtpd_sasl_auth_enable=yes
-o smtpd_sasl_authenticated_header=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
-o smtpd_data_restrictions=$submission_data_restrictions
-o smtpd_recipient_restrictions=$submission_recipient_restrictions
-o smtpd_sender_restrictions=$submission_sender_restrictions
#smtps inet n - n - -
smtpd
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - n - -
qmqpd
pickup fifo n - n 60 1
pickup
cleanup unix n - n - 0
cleanup
-o header_checks=regexp:/etc/postfix/header_checks.inbound
-o mime_header_checks=regexp:/etc/postfix/header_checks.inbound
cleanup_internal unix n - n - 0
cleanup
-o header_checks=regexp:/etc/postfix/header_checks.internal
-o mime_header_checks=regexp:/etc/postfix/header_checks.internal
cleanup_submission unix n - n - 0
cleanup
-o header_checks=regexp:/etc/postfix/header_checks.submission
-o mime_header_checks=regexp:/etc/postfix/header_checks.submission
qmgr fifo n - n 300 1 qmgr
#qmgr fifo n - n 300 1
oqmgr
tlsmgr unix - - n 1000? 1
tlsmgr
rewrite unix - - n - -
trivial-rewrite
bounce unix - - n - 0
bounce
defer unix - - n - 0
bounce
trace unix - - n - 0
bounce
verify unix - - n - 1
verify
flush unix n - n 1000? 0
flush
proxymap unix - - n - -
proxymap
proxywrite unix - - n - 1
proxymap
smtp unix - - n - - smtp
relay unix - - n - - smtp
showq unix n - n - -
showq
error unix - - n - -
error
retry unix - - n - -
error
discard unix - - n - -
discard
local unix - n n - -
local
virtual unix - n n - -
virtual
lmtp unix - - n - - lmtp
anvil unix - - n - 1
anvil
scache unix - - n - 1
scache
# Filter email through Amavisd
smtp-amavis unix - - n - 3 smtp
-o smtp_data_done_timeout=1800
-o disable_dns_lookups=yes
-o smtp_send_xforward_command=yes
-o max_use=20
-o smtp_bind_address=127.0.0.1
# Listener to re-inject email from Amavisd into Postfix
127.0.0.1:10025 inet n - n - 100
smtpd
-o cleanup_service_name=cleanup_internal
-o content_filter=smtp-wallace:[127.0.0.1]:10026
-o local_recipient_maps=
-o relay_recipient_maps=
-o smtpd_restriction_classes=
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o mynetworks=127.0.0.0/8
-o smtpd_authorized_xforward_hosts=127.0.0.0/8
# Filter email through Wallace
smtp-wallace unix - - n - 3 smtp
-o default_destination_recipient_limit=1
-o smtp_data_done_timeout=1800
-o disable_dns_lookups=yes
-o smtp_send_xforward_command=yes
-o max_use=20
# Listener to re-inject email from Wallace into Postfix
127.0.0.1:10027 inet n - n - 100
smtpd
-o cleanup_service_name=cleanup_internal
-o content_filter=
-o local_recipient_maps=
-o relay_recipient_maps=
-o smtpd_restriction_classes=
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions=
-o smtpd_recipient_restrictions=permit_mynetworks,reject
-o mynetworks=127.0.0.0/8
-o smtpd_authorized_xforward_hosts=127.0.0.0/8
recipient_policy unix - n n - -
spawn
user=kolab-n argv=/usr/libexec/postfix/kolab_smtp_access_policy
--verify-recipient
recipient_policy_incoming unix - n n - -
spawn
user=kolab-n argv=/usr/libexec/postfix/kolab_smtp_access_policy
--verify-recipient --allow-unauthenticated
sender_policy unix - n n - -
spawn
user=kolab-n argv=/usr/libexec/postfix/kolab_smtp_access_policy
--verify-sender
sender_policy_incoming unix - n n - -
spawn
user=kolab-n argv=/usr/libexec/postfix/kolab_smtp_access_policy
--verify-sender --allow-unauthenticated
submission_policy unix - n n - -
spawn
user=kolab-n argv=/usr/libexec/postfix/kolab_smtp_access_policy
--verify-sender --verify-recipient
-----Original Message-----
From: [email protected] <[email protected]> On
Behalf Of Viktor Dukhovni
Sent: Monday, January 11, 2021 8:56 PM
To: [email protected]
Subject: Re: Crazy retries for bounced (and a small number of successful)
emails
On Mon, Jan 11, 2021 at 11:48:25PM -0500, Bill Cole wrote:
> On 11 Jan 2021, at 21:49, Bob Jones wrote:
>
> > Also, what does all this mean essentially (in English)?
>
> The man page for master(5) is written in English and provides a
> standard answer. Is there something unclear there?
That's much too glib, somewhat bordering on just rude. :-( And not even
directly relevant, there's no mention of bounce, discard, ... there, nor
even mention of delivery agents. It is just master.cf *syntax*.
A much better reference is:
http://www.postfix.org/OVERVIEW.html
which does go over the roles of the various components.
--
Viktor.
