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Meta ignores RFC 2920; can't send mail to servers running #OpenSMTPD https://marc.info/?l=openbsd-misc&m=174990790228139&w=2

🚨BREAKING🚨: #Meta discovers the wonders of #RFCs, but #ZuckMail still can't find its way to #OpenSMTPD servers! 😂 Who knew that ignoring decades-old email protocols could lead to such groundbreaking failure? 📨🔍
https://marc.info/?l=openbsd-misc&m=174990790228139&w=2 #EmailProtocols #TechNews #HackerNews #ngated

Meta ignores RFC 2920; ZuckMail can't send mail to servers running OpenSMTPD

https://marc.info/?l=openbsd-misc&m=174990790228139&w=2

#HackerNews #Meta #ZuckMail #OpenSMTPD #RFC2920 #TechNews

If you use #OpenSMTPd with #Rspamd there is a limited set of headers that is accepted from rspamd into OpenSMTPd, notably anything configured in rspamd local.d/milter_headers.conf , such as SpamAssassins style "X-Spam-Level" will be missing.

There is a PR open that fixes this, https://github.com/poolpOrg/filter-rspamd/pull/52

Open SMTPd v7.7.0p0 has been released! 🙌 🎉

#SMTP #OpenSMTPd #OpenSource #POSIX #programming #BSD #freeBSD #ghostBSD #openBSD #Linux

https://undeadly.org/cgi?action=article;sid=20250514052136

The image shows a screenshot of an email from the OpenSMTPD project, detailing the release of version 7.7.0p0. The email is from Omar Polo, with the subject "OpenSMTPD 7.7.0p0 released." The email is part of the openbsd-announce mailing list and is timestamped at 14:39:18 on 2025-05-13. The email body provides information about OpenSMTPD, a free implementation of the SMTP protocol, and its availability on various operating systems. It mentions that the archives are available from the main site at www.opensmtpd.org and thanks the community for their contributions. The email also highlights changes in this release, including bug fixes and documentation improvements. The dependencies note specifies that this release builds with LibreSSL or OpenSSL >= 1.1, with LibreSSL being preferred. The email concludes with instructions on how to verify the release using signify(1) and provides a link to download the public key. The email is displayed on a mobile device with a black background, and the time and battery level are visible at the top of the screen.

Ovis2-8B

🌱 Energy used: 0.846 Wh

The image shows a screenshot of a mobile device displaying a news article from the OpenBSD Journal. The article is titled "OpenSMTPD 7.7.0p0 released" and is contributed by grey on 2025-05-13. The article mentions that Omar Polo (op[@]) has announced the release of version 7.7.0p0 of OpenSMTPD. The changes in this release include fixing issues with mail.lmtp, correcting connect filter request, and updating to new imsg APIs. The article also includes a link to the full release announcement for more details. The website's URL is undeadly.org/cgi?act, and the battery level is at 90%. The time displayed is 13:30, and the temperature is 25 degrees.

OpenSMTPD 7.7.0p0 released https://www.undeadly.org/cgi?action=article;sid=20250514052136 #openbsd #opensmtpd #smtp #email #mail #security #freesoftware #libresoftware

I may be jumping the gun a bit since I do not see an official release announcement?

There is however this: https://github.com/OpenSMTPD/OpenSMTPD/blob/master/CHANGES.md#release-770p0-2025-05-12

There's also a corresponding tarball on https://www.opensmtpd.org/archives/

Subsequently, I submitted a Pull Request to update MacPorts' OpenSMTPD to 7.7.0p0 here:

https://github.com/macports/macports-ports/pull/28417

GitHub Actions' Continuous Integration checks passed.

It's up to someone else with write access to merge it.

#OpenSMTPD #MacPorts #OpenBSD #macOS #SMTP #email

Hey #BSD friends!

Is there a way to set up oauth2 on Dovecot for authentication? (All local Auth, no Google or Microsoft involved). Do I have to run some big chunky java blob like keycloak or is there a much lighter weight implementation in C somewhere?

#OpenBSD #dovecot #opensmtpd #oauth2

#OpenBSD 7.7 has been released (#BSD / #NetBSD / #386BSD / #Unix / #LibreSSL / #OpenSSH / #OpenBGPD / #OpenSMTPD / #OpenNTPD / #OpenIKED / #rpkiClient / #mandoc) https://openbsd.org/

Nice! I gave #OpenSMTPD a try recently — it worked fine, but in my tests it wasn’t as fast as #Postfix. Still, I really appreciated how clean and easy the OpenSMTPD config is to understand.

CC: @mwl@io.mwl.io

wait cos smtp technically shouldn't need the internet to work, I wonder if I could create an offline flat mesh of smtp relays using #openbsd's #opensmtpd that all share a nfs with a mbox in it to store a record of all sent messages and their metadata to implement an offline, self-hostable, blockchain-like-distributed-database-thingy over smtp.

lets re-implement #arpanet for the 21st century using...email

brb gonna repurpose a bunch of old #thinkpads for this stupid idea...maybe

The SSD in my mailserver has 19,782 power on hours (which is 825 days, little over two years) with 'just' 13 powercycles. And let me tell you, those 13 powercycles are solely because I rebooted the system (upgrade, maintenance).

That is how rock-stable #OpenBSD and #OpenSMTPD are.

Oh, the #nostalgia of procmail! 🌻 But fret not, #OpenSMTPD and #Maildrop are here to rock your inbox with their synchronized dance moves you won't care about. Because, clearly, getting modern tools to work together is rocket science. 🚀🙄
http://blog.whenhen.com/posts/opensmtpd-and-maildrop-working-in-concert.html #procmail #emailtools #moderntech #HackerNews #ngated

OpenSMTPD and Maildrop working in concert

http://blog.whenhen.com/posts/opensmtpd-and-maildrop-working-in-concert.html

#HackerNews #OpenSMTPD #Maildrop #EmailSecurity #TechNews #OpenSource

I've released an SPF filter for OpenSMTPD: https://netsend.nl/opensmtpd-filter-spf/

#opensmtpd #milter #spf

Poljin 4,4-sisäpyöräilyn. Pyykkäsin. Kävin kävelyllä ja Limingantullin Prismassa. Tein ruokaa. Säädin OpenSMTPD:tä.

https://marginaa.li/2025/02/15/15-helmikuuta-2025/

Printing the top 10 envelope from sender domains that were caught in the spamtrap:

$ cut -f4 /var/spamtrap/trapped.tsv | cut -d@ -f2 | awk '{ a[$1] += 1 } END { for (d in a) { print a[d], d } }' | sort -rn | head -10
125 bondistar.de
80 tusale.pro
62 finsellster.com.es
25 mediamakers24.com
22 teeterm.store
20 mossane.store
9 novaresting.de
8 kvk.nl
7 info.coinb.com
6 coopunes.pro

https://netsend.nl/opensmtpd-filter-spamtrap/

#opensmtpd

@neil until last week I hosted my family's personnal mailbox on my own mail infrastructure (in a single OVH instance, not on my home connection because I wanted maximum uptime) with #opensmtpd, #dovecot and #rspamd on Alpine Linux, and for deliverability I had to relay through #smtp2go, a professional external relay (too much hassle with IP reputation). I switched to Infomaniak for my personnal mailboxes for 5 reasons:
* I was so stressed to break something each time I upgraded the whole thing.
* I didn't want to take responsibility in case it went down.
* Spam management is not easy, and the mechanisms to make rspamd learn whether ham/spam whenever you move a message in or out the spambox was duct-taped and not satisfying.
* IMO the fact that I was relaying everything through a proprietary SMTP relay was defying the whole point of selfhosting your mail infrastructure.
* Infomaniak price is cheaper than the VPS infrastructure with extra volume space for mailboxes.

However, as I self-host a lot services (this time directly at home) which generate some email notifications, I setup a SMTP service on-prem to handle that, with a dedicated DKIM selector. It work quite good for now.

Just had a huge fight with #OpenSMTPD about lmtp rcpt-to not expanding my aliases. I had to remove the rcpt-to but we made up and we’re in love again.

This could potentially be a bug. I don’t understand enough about mail to affirm that it’s a bug though.

Working on another #systemd hardening profile: OpenSMTPD

https://linux-audit.com/systemd/hardening-profiles/opensmtpd/

Are you running #opensmtpd and got a little bit of time to test? Let's get this thing known to more #sysadmin and help them secure their #Linux systems 💪

#OpenSMTPD

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