[pfx] Re: issue with virtual alias domains and mail rejected by the destination

2025-01-15 Thread Vincent Lefevre via Postfix-users
On 2025-01-15 15:44:35 +1100, Viktor Dukhovni via Postfix-users wrote: > On Wed, Jan 15, 2025 at 03:47:19AM +0100, Vincent Lefevre via Postfix-users > wrote: > > > As documented in https://www.postfix.org/VIRTUAL_README.html > > section "Mail forwarding domains",

[pfx] issue with virtual alias domains and mail rejected by the destination

2025-01-14 Thread Vincent Lefevre via Postfix-users
Hi, As documented in https://www.postfix.org/VIRTUAL_README.html section "Mail forwarding domains", to forward mail to another user, I have in the /etc/postfix/main.cf file (something set up in 2009): virtual_alias_domains = vinc17.org virtual_alias_maps = hash:/etc/postfix/virtual and in the /e

[pfx] Re: reverse DMARC protection by restoring the "From:" header?

2024-10-23 Thread Vincent Lefevre via Postfix-users
On 2024-10-22 10:20:55 -0400, Wietse Venema via Postfix-users wrote: > Vincent Lefevre via Postfix-users: > [ Charset ISO-8859-1 converted... ] > > As DMARC protection, some mailing-lists (like postfix-users) > > rewrite the "From:" header, with at least 2 drawbacks

[pfx] reverse DMARC protection by restoring the "From:" header?

2024-10-22 Thread Vincent Lefevre via Postfix-users
As DMARC protection, some mailing-lists (like postfix-users) rewrite the "From:" header, with at least 2 drawbacks: * This breaks e-mail searching by the "From:" address. * At my work, only the address is changed (without introducing "via "), so that this is very confusing as mail appea

[pfx] Re: chroot (as in Debian) or not? / documentation

2024-10-07 Thread Vincent Lefevre via Postfix-users
On 2024-10-07 09:35:13 +0200, Eray Aslan via Postfix-users wrote: > On Sun, Oct 06, 2024 at 11:06:21AM -0400, Bill Cole via Postfix-users wrote: > > The maintainer of the Debian (and by descent, Ubuntu) Postfix package > > long ago decided to take advantage of Postfix's support for chroot by > >

[pfx] Re: chroot (as in Debian) or not? / documentation

2024-10-05 Thread Vincent Lefevre via Postfix-users
On 2024-10-04 19:27:13 -0400, Wietse Venema via Postfix-users wrote: [...] > But wait there is more: dependencies of nsswitch.conf, dependencies > for timezone conversion, and so on, that are scattered over the > file system. For Debian, I've reported https://bugs.debian.org/cgi-bin/bugreport.c

[pfx] Re: chroot (as in Debian) or not? / documentation

2024-10-04 Thread Vincent Lefevre via Postfix-users
On 2024-10-04 08:05:14 -0400, Wietse Venema via Postfix-users wrote: > Vincent Lefevre via Postfix-users: > > Debian runs most postfix services in a chroot, with the consequence > > that the resolv.conf file may become obsolete. This is a particular > > annoyance on a la

[pfx] chroot (as in Debian) or not? / documentation

2024-10-04 Thread Vincent Lefevre via Postfix-users
Debian runs most postfix services in a chroot, with the consequence that the resolv.conf file may become obsolete. This is a particular annoyance on a laptop, where this file typically changes often as the laptop moves from one place to another. At https://bugs.debian.org/cgi-bin/bugreport.cgi?b

[pfx] Re: postfix does not use the MX of the parent domain

2023-11-21 Thread Vincent Lefevre via Postfix-users
On 2023-11-21 17:11:49 +0100, Gerald Galster via Postfix-users wrote: > See Simple Mail Transfer Protocol (SMTP), RFC 5321: > https://datatracker.ietf.org/doc/html/rfc5321#section-5 > > "The lookup first attempts to locate an MX record associated with the >name. If a CNAME record is found, t

[pfx] postfix does not use the MX of the parent domain

2023-11-21 Thread Vincent Lefevre via Postfix-users
When sending a mail to some @helpdesk.inria.fr address, postfix tries to connect to helpdesk.inria.fr (which does not have a MX): Nov 21 15:43:26 joooj postfix/smtp[748304]: D1A104A9: to=<[...]@helpdesk.inria.fr>, relay=none, delay=76462, delays=76431/0.1/30/0, dsn=4.4.1, status=deferred (connec