Security Admin (NetSec):
> Running Postfix as a mail gateway, version 2.6.5 and am finally
> getting around to implementing SPF in Postfix. I thought the
> TXT record in DNS would suffice which is how I have been running
> it.
>
> Found this how-to link http://www.howtoforge.com/postfix_spf
>
> Is this the proper way or is another recommended?
Postfix implements DKIM SPF and other authentication technologies
via plugins only. For SPF, you can use a policy plugin, or a Milter
plugin.
The Postfix 2.6 and later Milter interface also supports sender
address replacement which is needed for SRS.
Wietse
