Limit the Chance of Your MDaemon Accounts Being Hijacked and Abused by Spammers

This year in particular, I’ve seen an increasing number of users’ email account credentials become compromised, which has allowed spammers free reign to use their mail server to send spam out to the Internet.

The usual result is an overflowing outbound mail queue, thousands of bounce messages coming in and your server’s IP address being blacklisted.

The first thing to note is that if your company has an email server, you should assume that spammers will always be trying to hijack users’ accounts by guessing their passwords.

In this post I will run through a few simple pro-active settings checks that can reduce the chances of this happening and – in the unfortunate event that it does happen – can limit the resulting negative effects.

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How to prevent email account hijacking (and getting blacklisted!) with MDaemon

Account Hijack Detection - MDaemonHow can MDaemon Messaging Server help prevent accounts from being hijacked (and your company email server from being black listed)?

Finding out that your mail server is being used to relay SPAM can be a major headache for admins and a black mark on your company. As an MDaemon user, fortunately you have plenty of tools at your disposal to help prevent this from happening.

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MDaemon 13 beta preview: Part 3 – Detect and stop hijacked MDaemon accounts

One of the more common customers support calls i get relates to MDaemon suddenly sending vast amounts of spam email. This floods the outbound Internet connection and everything crawls to a halt.

Secondary to this the server’s public IP address can get listed on various external SMTP blacklists which the customer then has to request removal from.

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