SPF implementation schedule.

G.W. Haywood bind at jubileegroup.co.uk
Tue Jul 12 09:49:04 UTC 2011

Hi there,

On Tue, 12 Jul 2011 kalpesh varyani wrote:

> Looking at zytrix and spf2 sites, it seems that SPF is yet to be
> implemented at functional level.

If my understanding of that sentence is correct, then the sentence is
not correct.

SPF is implemented by

(1) Publication of TXT or SPF records in the DNS.  This is well
supported by nameservers such as BIND.  Their involvement in SPF ends
at this point.

(2) Examination of published DNS records by MAIL SERVERS which make
DNS queries IF they wish to check that incoming mail is not forged.
This is well supported by MAIL SERVER software.

The SPF DNS mechanism has been in common use for a number of years.
See for example

dig -t txt google.com

Why don't you join a mailing list more appropriate for SPF questions
and ask them there?  Here is one:

List-Subscribe: <mailto:subscribe-spf-discuss at listbox.com>



More information about the bind-users mailing list