Posts Tagged ‘DomainKeys’

DKIM and DomainKeys for qmail

March 19th, 2009

DomainKeys and its successor DomainKeys Identified Mail (DKIM) are technologies that allow organizations to take responsibility for a message. This is done by cryptographically signing an email as it leaves an organization in route to its destination. The signature can be verified using the DNS system to establish trust. In theory the technologies help cut down on spam by proving a message originated from the domain it says it does.

Support for DomainKeys in qmail has existed for a while thanks to a patch by Russel Nelson. Kyle Wheeler created a set of wrapper scripts that can be used to provide support for DKIM and DomainKeys. Mihai Secasiu has some wrapper scripts similar to Kyle’s that provide support for DKIM via the libdkim library instead of Perl’s Mail::DKIM module.

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