Over 100 billion emails get sent per day. Everything from simple out-of-office alerts to heavily private account and billing summaries gets transferred across servers, across the web, from person to person. And while we expect the things we send and deliver to remain protected and secured, we know that that isn’t always the case. There are various ways emails can be compromised, however, there are also a number of things that you can do, as a hosting provider, to prevent email abuse on your cPanel & WHM server. Here are a few of our easy-to-administer tips.
Up the Character Count on Passwords
We all know….well, we all should know the difference between a secure password and an insecure one:
Less secure: amy1234
More secure: ~4my0n3tw0thr334
With that in mind, ensuring your mail account holders are using secure passwords is one of the simplest ways to protect their information. While capitalization, symbol usage, and spelling all factor into password security, as a hosting provider, you can set a character minimum to ensure that all of your users have a base level of protection.
Familiar with the 2012 Marvel film The Avengers? In the final battle sequence, a seemingly unstoppable(keyword) alien army attempts to take down NYC — that is of course until the neurotically lovable Bruce Banner turns into his not-so-jolly green alter ego.
cPanel & WHM includes its own secret weapon that was developed to defend against the onslaught of brute force attacks. By enabling cPHulk, you can drastically prevent brute force attacks from affecting your users, your accounts, or your machine. Simply toggle the feature on from your Security Center and prevent malicious software from trying to muscle through your password security.
Enable SMTP Restrictions
All online activity happens through a series of rules called protocols. For mail, SMTP, or Simple Mail Transfer Protocol, is the system that allows mail to leave one mail server and get delivered directly to another machine.
With SMTP Restrictions, a feature you can enable straight from WHM, you can prevent spammers from directly interacting with your remote mail servers or even working around your mail security settings.