#exim4-question: I use something along the lines of

deny message = sender IP address blocked
hosts =CONFDIR/blocklist

but noticed that (as I have *.example.com and 192.0.2.0/24-entries in that file) at least for hosts with an incorrect rdns entry these lines are ignored. Any recommendation how to get that to working (next to considering to block incoming mails w/o rdns)?

There will be some downtime on https://www.rsok.com/~jrm/ and other services hosted on the same machine. I am upgrading #Debian stable.

#Linux #apache2 #exim4

8 years ago, a memory.

I was trying to get our web server and mail server ready to run Debian 9.0. It had only 1 GB of RAM and was running the 32 bit version of Debian 8. I had not had the cover off in several years, so plastic had become brittle and cable ends failed as they were unplugged and plugged in again. I finally cobbled together a new server with parts from 3 machines and got it working again. It then had 7 GB RAM and 4 CPU cores.

https://www.rsok.com/~jrm/index.html

#Debian #apache2 #exim4

Quite pleased with my automated #exim delivery monitoring!

In the case of low success % it gives a breakdown of per-domain fails and other info, too.

I'm using it with the #CiviMail component of #CiviCRM

#exim4 (why must it be called that, nobody uses v3!)

I had to increase maximum size for spam scanned messages on a bunch mail servers.

Spamassassin is a tool that scans messages to identify spam. By default it skips messages over 512K. Scanning larger messages is resource intensive and it used to be that spammers kept their messages to a minimum size to be efficient when sending large volumes of mail.

Well I've notice a slew of spam messages coming in right around 613K recently. They have image attachments that seem to be designed specifically to get past the 512K threshold.

Increased the spamc max-size var to 1048576 and these f*#$@ers are going back to the Junk bin.

p.s. Also increased the post size limit on norcal.social to allow for this post in it's entirety. Posts can now be 1024 characters, up from 500. Carry on.

#spamassassin #spam #email #linux #exim4

Bonjour,

Je suis sous #linux et plus précisément #debian. J'essaye de configurer #spamassassin pour qu'il fonctionne avec #exim4 . Si j'envoie un texte directement un texte a spamassassin, il se comporte comme prévue. Exim4 délivre bien les mails mais sans les faire transiter par spamassassin. Auriez-vous des suggestions? Des pistes?

Почтовый сервер с нуля. Часть третья

В этой заключительной статье мы подробно рассмотрим процесс настройки почтового сервера с использованием Docker и Exim4, Dovecot, PostfixAdmin и RainLoop. Наша цель — создать полностью функциональный и масштабируемый почтовый сервер, который легко управляется благодаря контейнеризации. Давайте настраивать

https://habr.com/ru/companies/nixys/articles/841028/

#exim4 #docker #dockerfile #exim #postgresql #dovecot #rainloop #redis #rspamd #почтовый_сервер

Hello followers I have an #exim4 problem #exim #mail the server I have inherited runs inside docker and cannot send mail to google anymore. During the Domain Handover SPF and DMARC where broken a bit so It might have been blacklisted in the meantime. I get the error "failed: Cannot assign requested address" when trying to connect to IPV6 and "failed: Connection timed out (timeout=5m)" when trying to connect to Google's IPv4 addresses.

Any insight welcome.

#followerpower

Как протестировать и обезопасить почтовый сервер в Debian и Ubuntu с ispmanager

Это вторая часть статьи о настройке почтового сервера. Расскажу о тестировании настроек почтового сервера и настройке его безопасности с помощью AppArmor, iptables и Fail2ban. Инструкция применима для Debian Linux и дистрибутива Ubuntu. В этой статье: • Тестирование настроек почтового сервера • Настройка Firewall iptables • Настройка Fail2ban • Безопасность RoundCube • Создание профилей AppArmor Процесс установки и настройки почтового сервера описал в первой части статьи — « Как настроить почтовый сервер в Debian и Ubuntu с ispmanager, чтобы защититься от спама » Читать

https://habr.com/ru/companies/ispmanager/articles/832452/

#ispmanager #информационная_безопасность #информационные_технологии #debian #ubuntu #ubuntu_server #exim #exim4 #dovecot #почтовый_сервер