MailScanner

MailScanner is an open source email security system for use on Unix email gateways and was first released in 2001. It protects against viruses, spam, malware, and phishing. It is distributed under the GNU General Public License.

MailScanner
Developer(s)Shawn Iverson
Stable release
5.3.4 / 4 December 2020
Repositorygithub.com/MailScanner/v5
Operating systemCross-platform
TypeEmail filtering
LicenseGPL
Websitewww.mailscanner.info

The original author, Julian Field, won the 2004 Open Source Award from UKUUG for the product.[1]

Worldwide, the software is estimated to be process over eighty billion emails per month, with millions of downloads. ISPs and mobile telephone networks are included in this list of users.

More recently, anti-phishing measures have been introduced. The software spots attempts at obfuscating URLs (for example, to lure the user into thinking they are signing into their bank, when in reality they are using an impostor web site) and modifies the email with a suitable warning.

As of January 2014 the project is sponsored by the lead developer Jerry Benton who is the founder of Mailborder Systems. As of January 2018 the primary developer is Shawn Iverson of the eFa Project. The project's other major contributor is Mark Sapiro of the GNU Mailman Project.

Technology

MailScanner is implemented in around 50,000 lines of Perl. It links with other software packages in order to fulfill its duties:

As with any complex software platform, performance results can vary wildly depending on a wide variety of factors. In 2009 evidence suggested that a quad Xeon PC with 2 GB of RAM and 15 kRPM SCSI disks can process something in the area of 2.2 million messages per day.[2] This number would be dwarfed by modern hardware.

References
  1. "UKUUG - Open Source Award 2004". UKUUG. 2004-05-16. Archived from the original on 2008-11-23. Retrieved 2009-04-21.
  2. "MailScanner 'Most Asked Questions (Setup examples)'". MailScanner. Retrieved 2009-04-21.


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