Mail Server

Part 4: How to Set up SPF and DKIM with Postfix on Ubuntu Server

After completing part 1 and part 2, we have a working Postfix SMTP server and Dovecot IMAP server. We can…

Mail Server Login Error – Dovecot IMAP Authentication Failed

You have set up a Postfix and Dovecot mail server for your own domain name. It runs smoothly for a…

build your own secure email server with postfix

Build Your Own Email Server on Ubuntu: Basic Postfix Setup

Why run your own email server? Perhaps you have a website, which needs to send emails to users, or maybe…

External SMTP Server

Send Email Using External SMTP Server on Ubuntu Server

In a previous article, I showed you how to send automated email backup to your email address so you can…

550 Mail Content Denied

How To Solve 550 Mail Content Denied Error

If you are running your own mail server and send emails to your mailing list, you may have encountered “550…