An important update of SecurityPlus has been released and all installations should be upgraded to version 4.1.5 as soon as possible.
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.
Some of our most common MDaemon support enquiries we get relate to users receiving spam.
Typically the amount of spam has either suddenly increased and there is a flood of junk messages or its just a specific message that looks to be obviously spam but has somehow made its way through.
Before picking up the phone to support you might find it useful to follow this simple guide to find out why MDaemon has not treated this message quite as expected.
Recently we’ve seen a significant increase in the number of MDaemon servers we come across being used to send spam email, and we’re finding that it’s often via an authenticated SMTP session.