Setting up SPF and DKIM

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Revision as of 14:17, 15 August 2007 by Root (talk | contribs) (New page: Category:Mail Category:Engineering == SPF == For SPF I use this wizard, http://old.openspf.org/wizard.html . It works well with DJBDNS. Example SPF string: v=spf1 ip4:192.168...)
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SPF

For SPF I use this wizard, http://old.openspf.org/wizard.html . It works well with DJBDNS.

Example SPF string:

 v=spf1 ip4:192.168.2.125/30 a mx:mail.example.com include:example.org ~all

DJBDNS format:

 'example.com:v=spf1 ip4\072192.168.2.125/30 a mx\072mail.example.com include\072example.org ~all:3600

DKIM

This is more of a pain and adds extra mail server load because the mail server has to be patched to support DKIM signing and each message must be signed as it passes through the server. I have not figured this out yet for qmail or MS Exchange.