What is Email Spam?

June 26, 2018 | By Comodo
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Email spam is not only annoying but also dangerous to users. So, what is email spam? Email spam is nothing but junk email or unsolicited bulk emails sent through the email system.

It refers to the use of an email system to send unsolicited emails especially advertising emails to a group of recipients. Unsolicited emails mean the recipient did not grant permission for receiving those emails.

The use of spam emails has been growing in popularity since the last decade and is a problem faced by most email users. Email IDs of users who receive email spam are usually obtained by spambots (automated software that crawls the internet for email addresses).

Email spam is still a problem even today, and spammers still approach it the spam way. Spam accounts for billions of emails sent every day which makes up 98% of all emails. Spam causes businesses billions of dollars every year.

Even though antivirus software has come a long way, infected PCs, trojans and bots are still the major sources of spam. There are billions of public IPs available for use; each one could have thousands of PCs behind it including potentially infected trojans and bots.

With new computers being infected on a regular basis, even some of the best reputation lists such as the SpamRats list with its 70 million listed IPs can only target a small fraction of those billions of addresses.

In the time it takes for spam filters to analyze the content of the email message, find out the source of the email and then submit the IP for blacklisting, you would have already allowed email spam into your system.

Preventing Email Spam

Method #1:

The most common form of spam protection is setting up a filter in front of your mail server. When an email is delivered, it first must pass through the filter before reaching the spam filter. From there (email server), it goes to the client server. In this stage, the email server knows nothing about the source of the spam and the filter doesn’t know what the client wants to do with the spam. It means that the filter must be one size fits for all.

Method #2:

Another common form of spam protection is by setting up the filter directly in the mail server. It requires a much bigger pipeline to the mail server causing more bandwidth, and there are other problems. Spam emails cannot be bounced back in this method.

Using a spam content filter can be very expensive, as the filter must accept the whole message and then apply a certain set of rules to the content that continuously changes. Relying entirely on spam filters is a constant game between the filtering software and the spammer. You set up a rule until a spammer finds a way around it. Before your spam filtering rules can be updated to accommodate the new strategy, you have already allowed lots of email spam onto your server. It’s a constant game, and it requires a better solution.

There should be a faster, more reliable solution for email spam. This is where the Comodo Dome Antispam solution comes into play. Before the spam email even enters your system, the Comodo Dome Antispam solution can detect whether or not it is coming from a legitimate configured mail server.

Comodo Dome Antispam can detect when the trojan is masquerading as a real mail server. It means better zero-day protection, no backscatter or reduced overhead costs.

Comodo Dome Antispam is the only enterprise anti-spam solution that has containment technology built-in. It uses advanced spam filters, and content analysis engines to identify and prevent unsolicited emails from entering your network.

If you are in search of a good anti-spam solution, look no further and get Comodo Dome Anti-spam today!

Dome Antispam

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