#postmaster — Public Fediverse posts

pros of having your fedi handle as an email: its cool
cons of having your fedi handle as an email:

#email #postmaster #fediadmin #mastoadmin

pros of having your fedi handle as an email: its cool
cons of having your fedi handle as an email:

#email #postmaster #fediadmin #mastoadmin

jesus fucking christ how about no???
way to burn your spam campaign you scamming assholes

#email #postmaster #spam

Courts Curiously Quiet So Far As #DJT #ExecOrder Attempts To Bypass #Constitutional Authority To Put #ExecutiveBranch Thumb on #American #Elections

Millions Of #Ballots Could Be Tossed By #Drumpf's Personal #Postmaster This Year If Presidential Whims Proceed Unabated

https://www.dcreport.org/2026/06/02/using-post-office-to-limit-voting/ #ConstitutionalCrisis #Voting

Phishers Liebling: Transaktionale E-Mail

Den Meisten ist der Terminus Transaktionale E-Mail vermutlich kein Begriff. Mir selbst ist er ungefähr 2021 zum ersten Mal bewusst über den Weg gelaufen. Seit ich ihn aber gehört und verstanden habe worum es sich sich dabei handelt begegnet mir dieser spezielle Typ E-Mail überall.

Ein ausführlicher Blog Post von Patrick Ben Koetter

https://sys4.de/blog/transaktionale-email/

#TransaktionaleEmail #Postmaster #emailsecurity

Allons bon, v'là aut' chose… Je ne suis plus personne
I have no name !

> Message-ID: <[email protected]>
> To: @gregr.fr
> X-Originating-IP: 35.195.139.164
> Date: Wed, 18 Mar 2026 16:02:29 +0000
> X-Received: by vfj.de id for <@gregr.fr>; Wed, 18 Mar 2026 16:02:29 +0000 (envelope-from <[email protected]>)

#mail #postmaster #sysadmin

Hot Take: E-Mail-Weiterleitungen sind immer Grütze. Egal, ob mit oder ohne SRS, DKIM oder ähnlichem.
Der Mailserver, der die Mails weiterleitet, handelt sich nur Probleme ein.


#mailadmin #postmaster

It works! It finally works! I’ve no idea how I made it work, but it works! I still hate databases. #sysadmin #postmaster #selfhost

It works! It finally works! I’ve no idea how I made it work, but it works! I still hate databases. #sysadmin #postmaster #selfhost

Uh oh … unbounded disk usage is back. I hate databases :mastodon_oops: #sysadmin #postmaster #selfhost

Uh oh … unbounded disk usage is back. I hate databases :mastodon_oops: #sysadmin #postmaster #selfhost

But, after all that, the SQLite database from my mail server (which holds all my mail) is now continuously replicating to an offsite backup and the backup restores correctly. Hopefully, this means that if the machine goes down or the database gets corrupted I’ll lose, at most, 15 seconds worth of data (mail) rather than 24-hours as per my previous backup routine.

#sysadmin #postmaster #selfhost

But, after all that, the SQLite database from my mail server (which holds all my mail) is now continuously replicating to an offsite backup and the backup restores correctly. Hopefully, this means that if the machine goes down or the database gets corrupted I’ll lose, at most, 15 seconds worth of data (mail) rather than 24-hours as per my previous backup routine.

#sysadmin #postmaster #selfhost

Setting up streaming replication was more of an adventure than I anticipated. Not only did it involve the expected database shenanigans, but it also required
- Battling with not standard chroots and internal-sftp
- Fiddling with the MTU on both ends of my link
- Applying a patch to litestream
- Downloading two different versions of go so that I can compile the binary on two machines running different architecture
- Buying more disk space on my VPS and expanding my LVM partition.
:mastodon_oops: 🫩

#sysadmin #postmaster #selfhost

https://colquitt.xyz/@daniel/115825627066368754

Setting up streaming replication was more of an adventure than I anticipated. Not only did it involve the expected database shenanigans, but it also required
- Battling with not standard chroots and internal-sftp
- Fiddling with the MTU on both ends of my link
- Applying a patch to litestream
- Downloading two different versions of go so that I can compile the binary on two machines running different architecture
- Buying more disk space on my VPS and expanding my LVM partition.
:mastodon_oops: 🫩

#sysadmin #postmaster #selfhost

https://colquitt.xyz/@daniel/115825627066368754

#qotd on [email protected]
> SPF is now basically useless because many SPF records include multi-tenant mail
farms where one tenant can fake make from another.
https://list.mailop.org/private/mailop/2026-January/032134.html
#mail #spf #postmaster

I am THIS close to fully blocking all IP ranges from AS11377 (Sendgrid) on my mailserver as the only thing they are sending my way is Trezor phishing mails. Fellow #postmaster #mailAdmin how do you treat them?

I am THIS close to fully blocking all IP ranges from AS11377 (Sendgrid) on my mailserver as the only thing they are sending my way is Trezor phishing mails. Fellow #postmaster #mailAdmin how do you treat them?

Came across an e-mail server Mox by @mjl written in :golang: Any fediversians using it? :blobcatthinkowo:

Must admit I've been using Exim and Postfix driven e-mail setups for more than two decades, therefore curious to explore a different server, which code I can actually read and understand well :ablobcatbongokeyboard:

Will be setting up a machine to try Mox out :blobcatdonutnom:

#email #serveradmin #sysadmin #postmaster

Came across an e-mail server Mox by @mjl written in :golang: Any fediversians using it? :blobcatthinkowo:

Must admit I've been using Exim and Postfix driven e-mail setups for more than two decades, therefore curious to explore a different server, which code I can actually read and understand well :ablobcatbongokeyboard:

Will be setting up a machine to try Mox out :blobcatdonutnom:

#email #serveradmin #sysadmin #postmaster

Ich habe meine bisherigen Erfahrungen zum sehr holprigen Zusammenspiel meines Mailservers (Debian, Postfix, Yunohost) mit dem Microsoft Exchange Server der neuen Schule meines Kindes (und der dort eingesetzten Mailingliste) im Blog ausführlich zusammengefasst:

https://www.caliandro.de/blog/Zusammenspiel_Postfix_DKIM_SPF_DMARC_Mailinglisten.html

Fazit: Man muss die modernen, bisher für mich normalen Sicherheitsstandards leider reduzieren, um die Abwärtskompatibilität mit Microsoft zu gewährleisten.

#yunohost #postmaster #sysadmin #postfix #microsoftExchange #tls #spf #dkim #dmarc #spam #spamhaus #blog

DKIM Fachfrage an Postmaster:innen

Ist das Verhalten korrekt, dass mein Mailserver eine Mail ablehnt, die von mir über eine Mailinglist an n Personen (inkl. mir) gesendet wurde und dann über die Mailingliste mit meiner Mailadresse als fiktiver Absender verteilt wird?

Ich hätte bis gestern gesagt: Ja, sonst ist Phising und Spam zu stark vereinfacht und mein Server rejected diese Mail aus gutem Grund als nicht authentifiziert.

Laut Mailinglistenbetreiber sind meine DKIM Settings fehlerhaft und deshalb würde diese Mail, die vom Mailinglisten-Server unter meiner Identität versendet wird, abgelehnt.

Ich habe ehrlicherweise schon lange keine Mailingliste mehr aktiv benutzt, aber meine mich zu erinnern, dass die an die Mailingliste versendeten Mails immer unter der Identität der Mailingliste selbst verteilt wurden.

Es ist auch so, dass eine Antwort an zu einer Direktmail an den ursprünglichen Absender führt und nicht an die Mailingliste. Damit bekommt der Rest der Personen im Verteiler gar nichts von der Diskussion mit (wenn nicht Antworten an Alle genutzt wurde).

#dkim #mailinglist #postmaster #frage

DKIM Fachfrage an Postmaster:innen

Ist das Verhalten korrekt, dass mein Mailserver eine Mail ablehnt, die von mir über eine Mailinglist an n Personen (inkl. mir) gesendet wurde und dann über die Mailingliste mit meiner Mailadresse als fiktiver Absender verteilt wird?

Ich hätte bis gestern gesagt: Ja, sonst ist Phising und Spam zu stark vereinfacht und mein Server rejected diese Mail aus gutem Grund als nicht authentifiziert.

Laut Mailinglistenbetreiber sind meine DKIM Settings fehlerhaft und deshalb würde diese Mail, die vom Mailinglisten-Server unter meiner Identität versendet wird, abgelehnt.

Ich habe ehrlicherweise schon lange keine Mailingliste mehr aktiv benutzt, aber meine mich zu erinnern, dass die an die Mailingliste versendeten Mails immer unter der Identität der Mailingliste selbst verteilt wurden.

Es ist auch so, dass eine Antwort an zu einer Direktmail an den ursprünglichen Absender führt und nicht an die Mailingliste. Damit bekommt der Rest der Personen im Verteiler gar nichts von der Diskussion mit (wenn nicht Antworten an Alle genutzt wurde).

#dkim #mailinglist #postmaster #frage

Wichtiger Hinweis: Ihre Identifizierung ist noch nicht abgeschlossen

https://spam.tamagothi.de/2025/09/08/wichtiger-hinweis-ihre-identifizierung-ist-noch-nicht-abgeschlossen/

Sounds about right

At #Trump’s urging, #USPS board to name #Waste Management official David Steiner as #postmaster general.

Steiner replaces Louis DeJoy, whom Trump forced out of the role in March amid the mail chief’s clashes with billionaire #ElonMusk’s #DOGE.

https://www.washingtonpost.com/business/2025/05/06/usps-trump-david-steiner/

Sounds about right

At #Trump’s urging, #USPS board to name #Waste Management official David Steiner as #postmaster general.

Steiner replaces Louis DeJoy, whom Trump forced out of the role in March amid the mail chief’s clashes with billionaire #ElonMusk’s #DOGE.

https://www.washingtonpost.com/business/2025/05/06/usps-trump-david-steiner/

Louis #DeJoy #Resigns as #Postmaster General 🤔

His sudden departure comes after he struck an agreement earlier this month to allow Elon Musk’s Department of Government Efficiency inside the USPS to cut costs and remove bureaucratic red tape.

https://time.com/7271271/louis-dejoy-resigns-postmaster-general/

#MailInVoting #BlackMastodon

Louis #DeJoy #Resigns as #Postmaster General 🤔

His sudden departure comes after he struck an agreement earlier this month to allow Elon Musk’s Department of Government Efficiency inside the USPS to cut costs and remove bureaucratic red tape.

https://time.com/7271271/louis-dejoy-resigns-postmaster-general/

#MailInVoting #BlackMastodon

sneaky bastards are getting smarter

#email #postmaster #spam

Added *.sa.com and *.za.com to the blocklist of my mailserver. AFAICS they only send spam around and have become quite active in the past few days. #postmaster life :) (UPDATE: more precise regex)

Added *.sa.com and *.za.com to the blocklist of my mailserver. AFAICS they only send spam around and have become quite active in the past few days. #postmaster life :) (UPDATE: more precise regex)

Louis DeJoy is another voter suppression wild card in the upcoming election. Can no one rid us of this meddlesome postmaster?
https://apnews.com/article/election-2024-mail-ballots-voting-postal-service-985dd6e483fb6dc593d83255b11a9d0a
#USPS #DeJoy #Postmaster #Vote #MailInBallot

#Biden just got one step closer to replacing #Postmaster General Louis #DeJoy

#VoteAllBlue2024 #BlackMastodon

https://www.alternet.org/biden-replace-dejoy/

#Biden just got one step closer to replacing #Postmaster General Louis #DeJoy

#VoteAllBlue2024 #BlackMastodon

https://www.alternet.org/biden-replace-dejoy/

A very odd email hit my catch-all today. Someone on an iphone claimed they 'clicked on my email' and could not get out of the send email dialog.

The first confusing part is, well, The account they replied to *did not* exist (hence why it hit the catch-all)

The second part is, It was addressed to an account that *DOES* exist on mastodon

There was no reply block to know what email they were referring to, so I have no idea what was going on, but I have two theories:

1. Someone is sending spam mail using scraped fedi handles. Not unlikely, but, the recipient was a gmail address, so, the likelyhood of that ending up *NOT* in spam is very low

2. The Iphone mail client incorrectly highlights fedi handles as emails, and an accidental tap summoned the send *new* email dialog. The only caveat for this one is that the fedi user in question hasn't been online in over a week, and hasn't posted in two weeks, So it would be weird for someone to get an email about them.

Regardless, I figured this would interest some of you out there, feel free to reply with your wildest theories.

#email #postmaster

Alleged Luxor Data Breach: Sensitive Information from Indian Stationery Giant Leaked https://thecyberexpress.com/alleged-luxor-data-breach/ #TheCyberExpressNews #Luxordatabreach #TheCyberExpress #FirewallDaily #Luxordataleak #HackerClaims #DarkWebNews #postmaster #darkweb

Alleged Luxor Data Breach: Sensitive Information from Indian Stationery Giant Leaked https://thecyberexpress.com/alleged-luxor-data-breach/ #TheCyberExpressNews #Luxordatabreach #TheCyberExpress #FirewallDaily #Luxordataleak #HackerClaims #DarkWebNews #postmaster #darkweb

Mad props to the #telekom #postmaster, got my mail server IP unblocked with less than 20 mins response time 👍
(Didn't had to block me in the first place, but hey, you take what you can get 😅 )

@GatekeepKen

Time Magazine, which tends to lean left, opened my eyes about this guy. I say keep him and let him finish the job. What say you?

https://time.com/6263424/louis-dejoy-trump-election-postal-reform/

#usps #dejoy #postmaster

@GatekeepKen

Time Magazine, which tends to lean left, opened my eyes about this guy. I say keep him and let him finish the job. What say you?

https://time.com/6263424/louis-dejoy-trump-election-postal-reform/

#usps #dejoy #postmaster

@stilgherrian .10% x 5000 is 5 spam reports. A competitor could easily put you in the danger zone by reporting you from five gmail accounts. So just that right there is incentive enough to opt-in to #Google's services.

I haven't looked deep into the #Postmaster tool, but just using history as a guide, I'm certain it collects data.

#AOL tried to pull something similar and people rightfully revolted. It was an anti-competitive weaponization of security.

@stilgherrian .10% x 5000 is 5 spam reports. A competitor could easily put you in the danger zone by reporting you from five gmail accounts. So just that right there is incentive enough to opt-in to #Google's services.

I haven't looked deep into the #Postmaster tool, but just using history as a guide, I'm certain it collects data.

#AOL tried to pull something similar and people rightfully revolted. It was an anti-competitive weaponization of security.

This Day in Alaska History-January 10th, 1882

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Image: Joe Juneau, gold prospector and co-founder of Juneau. Image-Public Domain
https://alaska-native-news.com/january-10th-1882/46837/
#Alaska #change #city #harris #harrisburg #history #joe #juneau #mining camp #name #post office #postmaster general #richard #rockwell #vote