How to Prevent Outgoing Spam on Your Server

Often when we think of spam, it usually relates to incoming spam inundating mail servers and bogging down systems. Another way spam can harm your dedicated server is from the inside.
Many spammers do not setup their own servers or paid hosting accounts to send spam. They want to be anonymous. Therefore, they often use other […]

Troubleshooting High Mail Server Loads

These days many personal email accounts are hosted on cloud servers, leaving many web servers without the need to send and deliver emails to their users. For plenty of businesses, however, having a mail server is still very much a part of the dedicated server experience.
If you host your own mail server, whether Postfix, Sendmail, […]

Mail Server Email Aliases

An email alias is a name that appears before the @ symbol in an email address, which actually refers to another account or location. For example, the alias “billing” may actually point to an email account on your server called “sales”. A single email account can have multiple aliases, and an alias can […]

How to Change the Port Number in Postfix

The default network SMTP port for Postfix, Sendmail and most other mail servers is 25. This is the port used to send email, and most email clients will use it by default. Unfortunately, some Internet service providers have started to block port 25 because of the high volume of spam sent through it. […]