Resources

The resources below cover tutorials and solutions that can be implemented using open source software which are freely available.

Antispam

AuthResults plugin for SpamAssassin
Blacklist
Antispam
Mail filtering
RBL/URIBL Lookup

Mail

How to install OpenDKIM
Scam-grey milter
Scam-backscatter milter

Sendmail

How to install sendmail
How to install sendmail with milter support
How to install sendmail with IPv6 support
How to configure sendmail to relay mail through a smarthost
Sendmail with SMTP AUTH
Sendmail DomainKeys
Sendmail DomainKeys Identified Mail (DKIM)
Using DomainKeys with MailScanner

Sun Cobalt

Cobalt resources

Spam

How to track spam

VPN

IPSec