From: Jorey Bump (listjoreybump.com)
Date: Tue Jul 31 2007 - 09:16:34 CDT

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Peter Rabbitson wrote:

> I am trying to figure out what should I do with SPF domain records given
> the current state of affairs with SPF/SenderID. I am not interested in
> filtering incoming mail based on SPF, I just want to adjust my DNS
> records to be as compatible with the rest of the world as possible.
>
> Most of my mail originates in-house, with a handfull of users sending
> mail through a static number of ISP servers. Roaming users have access
> to a VPN, so they qualify as in-house as well.
>
> Googling confused me even more hence this question to the list:
>
> What should a domain admin do to achieve maximum interoperability while
> sending _outgoing_ mails?
>
> A) Not publish any records at all
> B) Publish an explicit record
> C) Publish a relaxed record (should it end with ~all or ?all ?)

I choose A. I have never published an SPF record, and it has not
impaired my mail servers, destination domains, or users in any way. The
absence of an SPF record is unlikely to carry any penalty.

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