A very effective way to filter viruses and SPAM for multiple email domains is to use OpenBSD, OpenBSD’s spamd, ClamAV and SpamAssassin with OpenBSD’s included version of sendmail.

You can also use this configuration as a mail gateway in front of Microsoft Exchange servers if you have concerns with putting Exchange’s SMTP port “on the Internet.”

Here’s how to set it up: (more…)

SpamAssassin is an open-source spam filter. It uses a variety of tests to determine if an email message is SPAM or not. If determined SPAM, it can change the subject and the header of the message so that your mail program can move the message to a different folder (clearing up your Inbox).

For erdelynet.com, I do not use a site-wide configuration, but in other SpamAssassin installations I maintain, I do. Here’s how to set up SpamAssassin in a site-wide configuration on OpenBSD 3.6. (more…)

SpamAssassin is an open-source spam filter. The package/port shipping for OPENBSD_3_6_BASE (what’s on your CD… you bought a CD, right?) is an older version of SpamAssassin.

The version of SpamAssassin that is included with OpenBSD-current (OpenBSD 3.7-beta) compiles and installs cleanly on OpenBSD 3.6. (more…)

ClamAV, the GPL antivirus package for *nix will be included in OpenBSD 3.7 (which will be released on May 19). Before ClamAV was added to OpenBSD’s ports tree, www.fatbsd.com had been maintaining a port. After the addition of the port, this site stopped providing the port.

Using fatbsd’s last port (clamav-0.80_3.6.tgz) and the port in OpenBSD’s -current ports tree, I was able to backport ClamAV 0.83 for OpenBSD 3.6… (more…)

OpenBSD Pre-Orders are now open at http://www.openbsd.org/orders.html. This looks to be their best release yet… but then I’ve said that about every release.

So, go ahead… pre-order a CD… a shirt… and drop a few dollars for the cause.

Use OpenBSD… You’ll be glad you did.