ANTI SPAM

Anti-spam is generally defined as the protection of legitimate users from unwanted e-mail. This involves a variety of technologies delivered in software, appliance or service (SaaS) form.

One of the first techniques for removing spam was filtering email. This approach processes incoming messages against a set of specified criteria and decides whether to pass the message through to the user's mailbox, quarantine in a junk folder, or drop the message entirely. But filtering is a reactive approach and can take as long as one hour before updates are pushed out. This represents a window of opportunity for spam outbreaks and computer virus abuse.

A DNSBL (DNS-based blackhole list, block list, or blacklist) is a compilation of Internet Protocol (IP) addresses that have been identified as a source of spamming. The advent of botnets (networks of malicious software) has decentralized spamming sources and countered the effectiveness of blacklisting.

The complexity of email security has become more significant in recent years with the rise of new 'hit and fade' botnet attacks or 'slow drip' campaigns that evade black list detection.

Successful antispam involves a layered approach encompassing a robust mail server, content filter, reputation blacklisting, and behavioural analysis to control traffic from abusing your server resources. MailChannels Traffic Control offers a software solution for all those areas... and more. There is nothing to update or maintain, so you can focus on proactive activities that advance your organization.