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 : Jan 02, 2018 in Apache

Install CERTBOT in Ubuntu-16-04-xenial and Debian Stretch

Intro: Here is a 1-to-1 copy of the article on how to install certbot in Ubuntu 16.04 and Debian Stretch Ubuntu 16.04 HOWTO: Install On…

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…

Updated : Mar 31, 2016 in Email

Fixing Spamassassin in Debian Jessie(8)

Introduction: For a long time under Debian Wheezy Spamassassin was running quite well until I upgraded the system to Jessie. That is when Spamassassin(spamd) started…

Updated : Mar 09, 2016 in Apache

Testing SSL Connections with SSLyze, Nmap or OpenSSL

Introduction: OpenSSL is a great tool to check SSL connections to servers. The difficulty here is when one want a full scan of all possible…