Updated : May 05, 2018 in Email

Minimize the Digests shown Headers in Mailman 2.1.xx

Problem: Digests in Mailman are composed of a lots of unneeded headers which clutter the messages. Solution: Edit the Mailman configuration file manually as follows:…

Updated : May 02, 2018 in Email

Configuring Domain Relaying with ISPConfig 3.1.xx

Intention: Redirect (reroute) specific email addresses via, for example, an SMTP service: Steps: - Enter the destination domain in the Advanced Routing Table (Email ==>…

Updated : May 02, 2018 in Email

No Type list in ISPConfig 3.1.11

Problem: The brand new version of ISPConfig 3.1.11 when I add or modify an email transport, no value is displayed anymore on "type". Solution: Ref:…

Updated : Mar 23, 2018 in Email

Changing the mailman subscribers ‘moderation’ bit on the command line

Intro: In my mailman installation with over 3K subscribers I could not find why the web interface didn't allow me to change the 'moderation' bit…

Updated : Dec 23, 2017 in Email

Rectify mailman URLs after a hostname change

Intro: I had to change the server name of my mailman server. I changed it in /etc/mailman/mm_cfg.py as follows: # Default domain for email addresses…

Updated : Dec 21, 2017 in Email

Blocking reception of full TLDs

Intro: Lately I was receiving a lot of spam from a '.date' TLD sources and wanted to block all these emails using Postfix. Here is…

Updated : Dec 11, 2017 in Email

OpenDKIM doesn’t start after Upgrade from Jessie to Stretch

Introduction: After having done a dist-upgrade fo Jessie to Stretch OpenDKIM didn't start any more. After research I found the answer which worked for me…

Updated : Sep 02, 2017 in Email

Transferring IMAP account mails and folders to another IMAP account on another server

Introduction: The other day I was asked to install a completely new email server and transfer all the email accounts from the old mail server…

Updated : May 16, 2017 in Apache

Hardening the SSL security in Apache, Dovecot and Postfix

Introduction: After having gotten a report from OpenVAS that my SSL security level of the mail server were medium, I looked for ways to improve…

Updated : Feb 24, 2017 in Email

Whitelisting Hosts in Postfix/Amavis

Introduction: I have an email server with very strong spam filtering and every now and then it does see the emails that I send from…