[pfx] Re: SMTPUTF8 best practices

Den 29.06.2025 15:40, skrev Dmytro Alieksieiev via Postfix-users: Hi Jorge, To have SMTPUTF8 enabled in system it should be supported by all components of mail system. If you have LMTP as f.e. Dovecot which not yet production ready for SMTPUTF8 (at least from my view, as it only got suppor

[pfx] postfix smtp connecting to wrong localhost

In the process of writing this email, I found the root cause of my problem :) , but anyway if anybody suffers similarly, and Just For The Record, I'll send it anyway, including the solution(s). I have a multi-instance setup to do spam-filtering before I expand aliases for a mailing-list. Mail

[pfx] Re: Should I allow "address verification" by rcpt to in bogus bounce messages ?

Den 10.09.2024 07:10, skrev Viktor Dukhovni via Postfix-users: Thank you SO much for taking the time. Appreciated! On Mon, Sep 09, 2024 at 05:14:07PM +0200, Håkon Alstadheim via Postfix-users wrote: I got the attached report about a double bounce from my incoming postfix server "Postfix

[pfx] Should I allow "address verification" by rcpt to in bogus bounce messages ?

I got the attached report about a double bounce from my incoming postfix server "Postfix SMTP server: errors from nullbounce.com[116.202.14.127]:57394" . When I realize that this error is totally bogus, I want to blackhole that whole netblock. I see a double bounce, my heart jumps, I'm thinking

[pfx] Re: SMTP Smuggling, workarounds and fix

Just FYI, I got postfix 3.7.9-0+deb12u1 from bookworm-updates (i.e. Debian) today. ___ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org

Bounces from gmail

Amateur mail-admin here (I know, don't do that) . I have a redirect to gmail set up for two users, and at times this happens: 1) The relayhost ("smarthost") I use, my internet provider, will accept the mail for gmail. 2) Gmail rejects the mail as spam. 3) Relayhost bounces mail back at me.

Re: spamcop has been taken

Den 31.01.2021 14:20, skrev natan: Hi For users who use spamcop in postfix RBL list. Domain is lost or has been taken https://t.co/4Skoy0JjmQ First: why the spammy look on your mail ? I mean  "Content-Type: text/html; charset=utf-8  Content-Transfer-Encoding: b

Re: Preferred/maintained greylisting options?

Den 21.05.2020 20:49, skrev Charles Sprickman: Hi all, I have a site with a very old domain that’s at the front of the alphabet. For some reason (age, alphabetical order, ???) that domain gets bombarded with spam before the senders make it onto any of the blacklists I use (even trialed a few

Re: G Suite mx checker complains "do not configure the mail service on the only domain name."

Den 14.11.2018 08:21, skrev Poliman - Serwis: 2018-11-13 19:58 GMT+01:00 Wietse Venema >: Poliman - Serwis: > 2018-11-13 18:24 GMT+01:00 Viktor Dukhovni mailto:postfix-us...@dukhovni.org>>: > > > > On Nov 13, 2018, at 11:48 AM, Wietse Venema

Re: How to allow bounces to authenticaded users

Sorry folks, I'm not entirely there today. Receiving MX may of course be temporarily gone from DNS, so 450 it is. Pleas allow this thread to disappear into oblivion. :-) Den 21. okt. 2018 15:47, skrev Håkon Alstadheim: > I have a rather convoluted multi-instance setup that mostly wor

How to allow bounces to authenticaded users

I have a rather convoluted multi-instance setup that mostly works to my liking, with spam-filters, hand-off to mailman, dkim-signing and whatnot. One problem is that mis-typed outgoing addresses (host part) from my local, authenticated users end up deferred (450) and not bounced back to the sender.

Re: iOS Mail Client Not Copying to Sent Folder

Den 21. aug. 2018 08:44, skrev Robert Schetterer: > Am 21.08.2018 um 00:25 schrieb Asai: >> Greetings, >> >> We have many iOS clients, andomain.net some report >> that they’re having problems with iOS mail copying messages to their >> Sent folder.  This happens 2 - 3 times

Re: recommended smtp proxy script?

Den 13. okt. 2017 18:40, skrev Matus UHLAR - fantomas: > On 13.10.17 12:25, Håkon Alstadheim wrote: >> I'm thinking about hacking on a before queue proxy filter, but the link > > the only important part is - you apparently should not use milter on > submission ports.

Re: recommended smtp proxy script?

Den 13. okt. 2017 18:40, skrev Matus UHLAR - fantomas: > On 13.10.17 12:25, Håkon Alstadheim wrote: >> I'm thinking about hacking on a before queue proxy filter, but the link >> to suggested perl framework at >> http://www.postfix.org/SMTPD_PROXY_README.html seems d

recommended smtp proxy script?

I'm thinking about hacking on a before queue proxy filter, but the link to suggested perl framework at http://www.postfix.org/SMTPD_PROXY_README.html seems dead. I googled "Bennett Todd smtp proxy", which brings mee to a git repo last updated five years ago. What is the current best starting point

Re: multiple instances of postfix

Check out postmulti(1) manual page. Part of postfix package, at least on my debian system. This will let you have separate configurations (including master.cf) started by a single init-script. This works quite well, way better than making something similar manually. Den 15. aug. 2017 18:35, skrev