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Dan LangilleOn <a href="https://bsd.network/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FreeBSD</a> 14.2, can postfix be enabled and dma disabled without touching /etc/mail/mailer.conf and only modifying /usr/local/etc/mailer.conf?man 5 mailer.conf mentions /etc/mail/mailer.confman 8 mailwrapper mentions ${LOCALBASE}/etc/mail/mailer.confI am sure I read docs somewhere mentioning /usr/local/etc/mail/mailer.confI know postfix pkg-message mentions it: - install -m 0644 /usr/local/share/postfix/mailer.conf.postfix /usr/local/etc/mail/mailer.conf<a href="https://cgit.freebsd.org/ports/tree/mail/postfix/files/pkg-message.in#n15" rel="nofollow noopener noreferrer" target="_blank">https://cgit.freebsd.org/ports/tree/mail/postfix/files/pkg-message.in#n15</a>I ask because I have reports of dma and <a href="https://bsd.network/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> both appearing in /var/log/maillogOh wait, it might be as simple as directory permissions on /usr/local/etc/mail not being o+rxTomorrow will tell.

:debian: 𝚜𝚎𝚕𝚎𝚊 :opensuse:I find it really sad that Trusteddomainproject (authors of OpenDMARC) is basically dead<a href="https://social.linux.pizza/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://social.linux.pizza/tags/dmarc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dmarc</a> <a href="https://social.linux.pizza/tags/smtp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#smtp</a>

r1w1s1Nice! I gave <a href="https://snac.bsd.cafe?t=opensmtpd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSMTPD</a> a try recently — it worked fine, but in my tests it wasn’t as fast as <a href="https://snac.bsd.cafe?t=postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a>. Still, I really appreciated how clean and easy the OpenSMTPD config is to understand. CC: <a href="https://io.mwl.io/users/mwl" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mwl@io.mwl.io</a>

Mikael HanssonThis weekend's project: Replaced my <a href="https://hachyderm.io/tags/Postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a> <a href="https://hachyderm.io/tags/MTA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MTA</a> <a href="https://hachyderm.io/tags/mailserver" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mailserver</a> with a new one. I had been running a <a href="https://hachyderm.io/tags/Ubuntu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ubuntu</a> based one since 2020, and it didn't deal well with an in-place upgrade.New machine set up on <a href="https://hachyderm.io/tags/Debian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Debian</a> 12, with a bunch of tips stolen from <a href="https://io.mwl.io/@mwl" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mwl</a> 's book Run Your Own Mail Server (<a href="https://mwl.io/nonfiction/tools#ryoms" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mwl.io/nonfiction/tools#ryoms</a>) and from the ISPMail guide (<a href="https://workaround.org/ispmail-bookworm/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://workaround.org/ispmail-bookworm/</a>)

Éric V.Do any email sysadmin understand what's the difference between StartTLS and x509 scores in the MECSA report? How to go from orange to green score? What requirements must the certificate have and is it possible with LetsEncrypt?relevant links <a href="https://mecsa.jrc.ec.europa.eu/faq#section2" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mecsa.jrc.ec.europa.eu/faq#section2</a> and <a href="https://mecsa.jrc.ec.europa.eu/en/technical#x509" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mecsa.jrc.ec.europa.eu/en/technical#x509</a><a href="https://mamot.fr/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> <a href="https://mamot.fr/tags/letsencrypt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#letsencrypt</a> <a href="https://mamot.fr/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> <a href="https://mamot.fr/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mamot.fr/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mamot.fr/tags/certificate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#certificate</a> <a href="https://mamot.fr/tags/x509" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#x509</a> <a href="https://mamot.fr/tags/europe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#europe</a> <a href="https://mamot.fr/tags/selfhosted" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selfhosted</a>

SchenklEin Worst-Case tritt gerade ein: Ich muss mich mit <a href="https://chaos.social/tags/Postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a> außeinandersetzen 🙄

SantiagoSysadmins del fediverso, que score usan para Spamassassin? <a href="https://mastodon.uy/tags/spam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spam</a> <a href="https://mastodon.uy/tags/spamassassin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spamassassin</a> <a href="https://mastodon.uy/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mastodon.uy/tags/correo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#correo</a> <a href="https://mastodon.uy/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> <a href="https://mastodon.uy/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mastodon.uy/tags/dovecot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dovecot</a>

Joaquim HomrighausenAn alternative to pflogsumm, depending on your needs 😉 <a href="https://github.com/joho1968/scriptfu/blob/main/pflogpy.py" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/joho1968/scriptfu/blob/main/pflogpy.py</a><a href="https://mastodon.online/tags/code" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#code</a> <a href="https://mastodon.online/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://mastodon.online/tags/pflogsumm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pflogsumm</a> <a href="https://mastodon.online/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mastodon.online/tags/logsummary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#logsummary</a> <a href="https://mastodon.online/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://mastodon.online/tags/report" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#report</a> <a href="https://mastodon.online/tags/logs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#logs</a> <a href="https://mastodon.online/tags/mta" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mta</a> <a href="https://mastodon.online/tags/oss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oss</a> <a href="https://mastodon.online/tags/foss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#foss</a> <a href="https://mastodon.online/tags/unlicense" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unlicense</a>

gary<a href="https://mastodon.social/@gerowen" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@gerowen</a> running your own mailserver ncan be a minor timesink but also probably well worth it - email is the original killer app. there are quite a few ways you can do it. I set up logwatch to send out mail to gmail and it is always spotty <a href="https://infosec.exchange/tags/rroundcube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rroundcube</a> <a href="https://infosec.exchange/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://infosec.exchange/tags/own" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#own</a> mailbox this may run better on a vm or a vps/vpn combo - you are more advanced, i see this as a good project for you and me both really but email is a deep pocket of knowledge - lots of knobs and optionsalso caveat this is like c 2015 but i like the concept<a href="https://www.cnx-software.com/2015/09/18/own-mailbox-is-a-tiny-secure-and-open-source-hardware-mail-server-crowdfunding/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.cnx-software.com/2015/09/18/own-mailbox-is-a-tiny-secure-and-open-source-hardware-mail-server-crowdfunding/</a>

DeltaLima 🐧Hey <a href="https://social.la10cy.net/tags/Sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Sysadmin</a>|s of the fediverse, I want to ask you for some recommendation, I want to get rid of my old and molden mailsystem.I just need Mail for a couple accounts and domains for myself and some friends. Would be nice to have a WebGUI, but is not a must.<a href="https://social.la10cy.net/tags/selfhosting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selfhosting</a> <a href="https://social.la10cy.net/tags/mail" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mail</a> <a href="https://social.la10cy.net/tags/mailsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mailsystem</a> <a href="https://social.la10cy.net/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> <a href="https://social.la10cy.net/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://social.la10cy.net/tags/smtp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#smtp</a> <a href="https://social.la10cy.net/tags/courier" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#courier</a>

Éric V.For <a href="https://mamot.fr/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> configuration and <a href="https://mamot.fr/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> check, the European Commission provides a great tool: MECSA <a href="https://mecsa.jrc.ec.europa.eu/en/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mecsa.jrc.ec.europa.eu/en/</a> conclusion: I still have some improvements to implement on my own server <a href="https://mamot.fr/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mamot.fr/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://mamot.fr/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mamot.fr/tags/DKIM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DKIM</a> <a href="https://mamot.fr/tags/DMARC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DMARC</a> <a href="https://mamot.fr/tags/DNSSEC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DNSSEC</a> <a href="https://mamot.fr/tags/selfhosting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selfhosting</a>

Stéphane Bortzmeyer<a href="https://mastodon.gougere.fr/tags/sysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysAdmin</a> <a href="https://mastodon.gougere.fr/tags/Postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a> Ah, je viens d'avoir le "unexpected attribute smtputf8 from xxx socket (expecting: sendopts)" Voilà ce qui arrive quand on ne lit pas les release notes. (Executive summary : redémarrez Postfix.)

Stuart Longland (VK4MSL)Well, after a lot of swearing… I *think* I have a Raspberry Pi 400 running <a href="https://aus.social/tags/AlpineLinux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AlpineLinux</a> … tethered to my 4G phone hotspot … acting as a crude WiFi router/bridge for my border router running <a href="https://aus.social/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenBSD</a> which is tunnelling to my OpenBSD VPS at Binary Lane.Over that tunnel, I now have <a href="https://aus.social/tags/Postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a> on the home mail server, relaying over the VPN to <a href="https://aus.social/tags/OpenSMTPD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSMTPD</a> on the VPS.Should be useful the day I have to leave Internode… but for now, it's bypassing the rather dead NBN service (thank-you <a href="https://aus.social/tags/CycloneAlfred" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CycloneAlfred</a>).

Joaquim HomrighausenWhy can't I get a Docker container (using docker-compose) to access Postfix running on the host on port 25? 🤔 I must be missing something, obviously 😎 Any takers? <a href="https://mastodon.online/tags/docker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#docker</a> <a href="https://mastodon.online/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mastodon.online/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://mastodon.online/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mastodon.online/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

Delta Chat<a href="https://mastodon.social/@mavu" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@mavu</a> We use <a href="https://chaos.social/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> in <a href="https://chaos.social/tags/chatmail" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#chatmail</a> setup, and so does <a href="https://mailcow.social/@doncow" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@doncow</a> It is well-documented and in our setup at <a href="https://github.com/chatmail/server" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/chatmail/server</a> there are only two small postfix configs.

Julien RiouI've Got Mail <a href="https://bonesmoses.org/2025/ive-got-mail/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://bonesmoses.org/2025/ive-got-mail/</a><a href="https://hachyderm.io/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> <a href="https://hachyderm.io/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://hachyderm.io/tags/postgrey" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postgrey</a> <a href="https://hachyderm.io/tags/dovecot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dovecot</a> <a href="https://hachyderm.io/tags/roundcube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#roundcube</a> <a href="https://hachyderm.io/tags/dns" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dns</a> <a href="https://hachyderm.io/tags/dkim" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dkim</a> <a href="https://hachyderm.io/tags/dmarc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dmarc</a> <a href="https://hachyderm.io/tags/mailinabox" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mailinabox</a> <a href="https://hachyderm.io/tags/mailu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mailu</a> <a href="https://hachyderm.io/tags/mailcow" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mailcow</a> <a href="https://hachyderm.io/tags/stalwart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#stalwart</a> <a href="https://hachyderm.io/tags/protonmail" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#protonmail</a> <a href="https://hachyderm.io/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a>

Mr.GenerationService-Post für Mail-Server-Betreiber:NixSpam DNSBL von Heise / Manitu ist nach einer grace period nicht länger im Service und gibt nun Fehlercodes zurück. Entfernt ix.dnsbl.manitu.net aus euren MTA-Konfigurationen.<a href="https://soziale.cloud/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://soziale.cloud/tags/email" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#email</a> <a href="https://soziale.cloud/tags/mta" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mta</a> <a href="https://soziale.cloud/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://soziale.cloud/tags/rspamd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rspamd</a>

Colin Cogle :verified:<a href="https://mastodon.social/@antondollmaier" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@antondollmaier</a> I configured Postfix to reject all email from that TLD. It’s sent me nothing of value. <a href="https://mastodon.colincogle.name/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> <a href="https://mastodon.colincogle.name/tags/SelfHosted" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SelfHosted</a>

Neustradamus :xmpp: :linux:<a href="https://mastodon.social/tags/ProxmoxMailGateway" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProxmoxMailGateway</a> 8.2 has been released (<a href="https://mastodon.social/tags/Proxmox" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Proxmox</a> / <a href="https://mastodon.social/tags/ProxmoxMG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ProxmoxMG</a> / <a href="https://mastodon.social/tags/MailGateway" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MailGateway</a> / <a href="https://mastodon.social/tags/ZFS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ZFS</a> / <a href="https://mastodon.social/tags/OpenZFS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenZFS</a> / <a href="https://mastodon.social/tags/SpamAssassin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpamAssassin</a> / <a href="https://mastodon.social/tags/Postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Postfix</a> / <a href="https://mastodon.social/tags/PostgreSQL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PostgreSQL</a> / <a href="https://mastodon.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> / <a href="https://mastodon.social/tags/Debian" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Debian</a> / <a href="https://mastodon.social/tags/Bookworm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Bookworm</a> / <a href="https://mastodon.social/tags/DebianBookworm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DebianBookworm</a>) <a href="https://proxmox.com/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://proxmox.com/</a>

The Grue<a href="https://digitalcourage.social/tags/fedihelp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fedihelp</a> , please: I'm <a href="https://digitalcourage.social/tags/selfhosting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selfhosting</a> <a href="https://digitalcourage.social/tags/dovecot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dovecot</a> and <a href="https://digitalcourage.social/tags/postfix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postfix</a> and running out of disk space with my mails reaching back into last century. I'd like to remove the oldest ones and keep an archive of any kind on a different host. What would be the easiest way to achieve that? Maybe just imap-sync to some special maildir?Edit:typo

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