#DKIM #DMARC #SPF
Autres spams du jour : deux messages prétendant venir d'Atlassian (la boite favorite des chefs de projet et product owners), l'un créant un ticket Vinci et un autre un ticket Bouygues. (Avec une signature DKIM invalide mais ça peut toujours passer, on ne sait jamais. Le spammeur a pensé à insérer un Authentication-Results mensonger.)
#DKIM
Eine neue #Episode des #Zeroday#Podcast ist #online: 0d130 – Der Wunsch Mail-Provider
Link zur Episode: https://0x0d.de/2026/01/0d130-der-wunsch-mail-provider/
@zeroday@podcasts.social (Stefan)
@zeroday (Sven)
#Datenschutz #DKIM #DMARC #EMail #IMAP #Informationssicherheit #ITSecurity #ITSicherheit #POP3 #privacy #Privatsphäre #SMTP #SPF
Gmail sẽ tắt POP và Gmailify từ tháng 1/2026. Chuyển tiếp thủ công khiến email bị lỗi do vi phạm DMARC/DKIM. Mình đã tạo ForwardMyInbox – giải pháp chuyển email từ tài khoản khác vào Gmail mà vẫn giữ nguyên xác thực, không phụ thuộc POP. Dùng được cho ai muốn giữ Gmail làm hộp thư chính. #Gmail #EmailForwarding #DMARC #DKIM #ForwardMyInbox #CôngNghệ #Email #SaaS
https://www.reddit.com/r/SaaS/comments/1qpbdc3/gmail_pop_is_ending_in_jan_2026_i_built_a/
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite? ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #dkim #opensource #django #opendkim #dmarc #spf #selfhosting #reverseproxy #selfhosted
It’s official and we are proud as hell! 😎
sys4 will send 3 of its experts to work at the EU commissions’ Multistakeholder Forum on Internet Standards Deployment „to guide deployment of key Internet standards under NIS2 network security measures and promote wider industry uptake.“
We - @cstrotm (DNS / DNSSEC), Gert Doering (IPv6, RPKI) and @patrickbenkoetter (TLS, DANE, MTA-STS, SPF, DKIM, DMARC) - will work on recommendations and best practices.
Our intent is to recommend what’s reasonable for customer security on the Internet and we expect the one or the other company to disagree for economic reasons. Like they have disagreed since we started to talk with them more than 10 years ago. And the market didn’t fix it. Well… let’s see if working in the Forum will do the trick.
https://digital-strategy.ec.europa.eu/en/news/european-commission-seeks-participants-multi-stakeholder-forum-internet-standards-deployment
#dns #dnssec #ipv6 #rpki #tls #dane #mtasts #spf #dkim #dmarc
[Перевод] Подсмотрел PIN от двери, а затем воткнул Wi-Fi-жучка за принтер — и ты внутри сети банка
Проник в банк не через вайфай и не через фишинг — а просто пристроился к аудиторам с улицы. Никто не спросил имени. Никто не проверил. А через час уже сидел у них в сети с рабочим пропуском. Как это случилось — и почему «следовать инструкции» не спасло — в новой статье.
#редтиминг #взлом #социальная_инженерия #фишинг #DKIM #DMARC #email_spoofing #управление_паролями #доступ_к_данным
[Перевод] Подсмотрел PIN от двери, а затем воткнул Wi-Fi-жучка за принтер — и ты внутри сети банка
Проник в банк не через вайфай и не через фишинг — а просто пристроился к аудиторам с улицы. Никто не спросил имени. Никто не проверил. А через час уже сидел у них в сети с рабочим пропуском. Как это случилось — и почему «следовать инструкции» не спасло — в новой статье.
https://habr.com/ru/companies/flant/articles/979672/
#редтиминг #взлом #социальная_инженерия #фишинг #DKIM #DMARC #email_spoofing #управление_паролями #доступ_к_данным
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite? ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #dkim #spf #dmarc #django #selfhosting #selfhosted #opendkim #opensource #reverseproxy
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite? ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #opendkim #selfhosting #dkim #django #selfhosted #opensource #dmarc #reverseproxy #spf
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite?
Mailman Suite ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #selfhosted #opendkim #dmarc #reverseproxy #dkim #django #spf #selfhosting
He could really use a native speaker. Based on machine translation supplemented by my thin Spanish I don’t really understand the question with any specificity…
#email #spam #DKIM @microblogc https://neopaquita.es/@microblogc/115790517109404606
Para los que sepáis de seguridad informática:
En su día instalé en mi servidor de correo las firmas SPF y DKIM, pero seguía recibiendo falsos mensajes como enviados por usuarios de mi servidor (para redactar/enviar un correo de mi servidor a otro hay que autenticarse, pero no se estaba pidiendo autenticación para enviar correo desde mi servidor a mi servidor).
Finalmente, esta primavera instalé DMARC y PTR, y desde entonces el número de mensajes supuestamente enviados desde mi servidor a mí mismo (es decir, que mi servidor ni se molesta en verificar) se han reducido considerablemente.
Sin embargo, todavía recibo algunos mensajes enviados "desde mi servidor", e incluso hay alertas en spambox de mensajes recibidos desde cuentas de mi servidor (cuentas cuyos login aparecen en filtraciones públicas pero que no existen en mi servidor, al menos desde que yo me hice con el dominio hace más de 10 años).
Sospecho que esto se debe a que mi servidor es compartido (mi DNS apunta a svNNN.proveedor.com, donde hay otros servidores de correo y web.)
¿Qué más tengo que hacer para evitar que se sigan enviando mensajes spoofeando mi dominio?
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite?
Mailman Suite ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #reverseproxy #selfhosted #django #dkim #spf #dmarc #selfhosting #opendkim
Some email sending services use CNAME dns records for SPF and DKIM, which makes perfect sense.
Yesterday I learned that if you (or a customer) let Cloudflare run those CNAMEs in proxy mode. The results are very random and hard to debug from the outside. Making DMARC checks pretty much impossible.
How to Deploy #Mailman Suite on #Debian #VPS for Automated Mailing List Management This article provides a detailed step-by-step guide demonstrating how to deploy Mailman Suite on Debian VPS for automated mailing list management. Mailman Suite includes Mailman Core, #Postorius (web UI), #HyperKitty (archiver), and the Mailman Web UI integration.
What is Mailman Suite?
Mailman Suite ...
Continued 👉 https://blog.radwebhosting.com/deploy-mailman-suite-on-debian-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #django #spf #selfhosting #reverseproxy #opendkim #dmarc #selfhosted #dkim
Ho usato la test suite di @internet_nl per valutare i siti istituzionali delle PA e i risultati sono imbarazzanti 😱
- Solo lo 0,55% dei domini è autenticato con #DNSSEC
- Solo l'1,67% dei siti è raggiungibile con #IPv6
- Solo il 12% dei siti implementa correttamente #HTTPS
- Solo il 4,75% dei domini di posta elettronica adotta adeguate misure di protezione dal phishing #DMARC #DKIM #SPF
- Elevata dipendenza da ISP statunitensi, in particolare per la posta elettronica
https://www.fabriziotarizzo.org/documenti/analisi-siti-pa-2025/
I'm using One.com as web/email hosting and I have setup SPF, DKIM and DMARC and everything is OK and it works as it should.
However, Microsoft does not trust my emails, and for everyone using their email service my emails end up in their spam folder.
And when big companies uses some kind of ticket system I don't thing they ever see my emails at all.
I'ts frustrating and tiresome.
I have the option to switch to Microsoft Exchange as email service using my web hosting company, but then I feel like I'm only contributing to the problem as I give Microsoft more control over email in the world.
Any thoughts or advice?
#Email #Microsoft #One #DKIM #SPF #DMARC #EmailProvider #WebHosting #EmailHosting #MicrosoftExchange #MicrosoftBusiness #Epost #EmailService
However, Microsoft does not trust my emails, and for everyone using their email service my emails end up in their spam folder.
And when big companies uses some kind of ticket system I don't thing they ever see my emails at all.
I'ts frustrating and tiresome.
I have the option to switch to Microsoft Exchange as email service using my web hosting company, but then I feel like I'm only contributing to the problem as I give Microsoft more control over email in the world.
Any thoughts or advice?
#Email #Microsoft #One #DKIM #SPF #DMARC #EmailProvider #WebHosting #EmailHosting #MicrosoftExchange #MicrosoftBusiness #Epost #EmailService
Client Info
Server: https://mastodon.social
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