(Subject chosen for search engines and future acolytes...)

On 2/13/26 5:03 PM, Viktor Dukhovni via Postfix-users wrote:

> [...] While a reader of the debug_peer_list documentation who is
> generally versed in the documentation of other similar parameters might
> recall... [a long litany of something] not mentioning the same here is an 
> ommision.
>
> Something along the lines of the below should probably be repeated [...]

I hope I've accurately captured your point of view.

  * https://www.postfix.org/BASIC_CONFIGURATION_README.html contains no
    examples of IPv6
  * https://www.postfix.org/BASIC_CONFIGURATION_README.html#syntax
    (obviously considering priors) contains no examples if IPv6
  * The preamble of https://www.postfix.org/postconf.5.html (subtitled
    _Postfix main.cf file format_) contains no IP address examples at all.
  * (There is no footer to the previous file.)

Hrm... this is that copy of 3.5.9...

suse:/etc/postfix # postconf -d | grep ':.*:'
alias_maps = lmdb:/etc/aliases, nis:mail.aliases
local_recipient_maps = proxy:unix:passwd.byname $alias_maps
mynetworks = 127.0.0.0/8 192.168.123.0/24 [::1]/128
tls_export_cipherlist = aNULL:-aNULL:HIGH:MEDIUM:LOW:EXPORT:+RC4:@STRENGTH
tls_high_cipherlist = aNULL:-aNULL:HIGH:@STRENGTH
tls_low_cipherlist = aNULL:-aNULL:HIGH:MEDIUM:LOW:+RC4:@STRENGTH
tls_medium_cipherlist = aNULL:-aNULL:HIGH:MEDIUM:+RC4:@STRENGTH

Do I smell smoke? I don't really see fire... (yes, I see it, because I'm
looking specifically for it. elephant. squirrel. is that upstream, or
did SuSE do it?)

m3047@sophia:/opt/downloads/postfix-3.11.0-RC3/conf> grep ':.*:' main.cf
#local_recipient_maps = proxy:unix:passwd.byname $alias_maps
# In the case of SMTP, specify a domain, host, host:port, [host]:port,
#alias_maps = hash:/etc/aliases, nis:mail.aliases
#alias_database = hash:/etc/aliases, hash:/opt/majordomo/aliases
#mailbox_transport = lmtp:unix:/var/imap/socket/lmtp
#fallback_transport = lmtp:unix:/file/name
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
#       PATH=/bin:/usr/bin:/usr/local/bin; export PATH; (echo cont;
#       PATH=/bin:/usr/bin:/sbin:/usr/sbin; export PATH; screen

Maybe I was mistaken? Null hypothesis: no IP addresses are referenced in
the sample file?

m3047@sophia:/opt/downloads/postfix-3.11.0-RC3/conf> grep -E 
'[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+' main.cf
#proxy_interfaces = 1.2.3.4
#mynetworks = 168.100.3.0/28, 127.0.0.0/8
#debug_peer_list = 127.0.0.1

Hrm.

Welp.

https://duckduckgo.com/?q=postfix+main.cf+syntax+ipv6&ia=web kicks
https://www.postfix.org/IPV6_README.html as the first result and it's
referenced from https://www.postfix.org/documentation.html as _IP
Version 6 Support_

It would have helped me if that doc was referenced from
https://www.postfix.org/BASIC_CONFIGURATION_README.html#syntax or in the
sample main.cf. Generally speaking instead of repeating yourself a
canonical syntax document is something I look for, maybe that's not your
jam.


Respectfully...

--

Fred Morris, internet plumber



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