Mailing List Archive: SPF: Help

SPF and Sender ID

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gameslover987 at yahoo

Apr 16, 2008, 9:28 AM

Post #1 of 7 (566 views)
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SPF and Sender ID

All,

Is it possible to setup both SPF and Sender ID? I read
some articles and suggestion that they are not
co-exist together.

Thanks.

-DP

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steve at teamITS

Apr 16, 2008, 10:07 AM

Post #2 of 7 (543 views)
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RE: SPF and Sender ID [In reply to]

Dave Peters wrote on 4/16/2008 11:28:42 AM:

> Is it possible to setup both SPF and Sender ID? I read
> some articles and suggestion that they are not
> co-exist together.

They can. Sender ID will try to use your SPF record, but you
can set up a Sender ID record as well. We have two, an SPF record and a
Sender ID record that uses "spf2.0/mfrom" to force identical behavior to
our SPF record.

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- (A)bort, (R)etry, (P)retend this never happened...

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d.wall at computer

Apr 16, 2008, 10:08 AM

Post #3 of 7 (544 views)
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Re: SPF and Sender ID [In reply to]

> Is it possible to setup both SPF and Sender ID? I read
> some articles and suggestion that they are not
> co-exist together.
>
It should be, at least if you are talking about doing your DNS TXT
records so you are protecting your domain as they have different TXT
values and so which is which can be determined. If you are checking
that others have valid SPF/SenderID, it could be more tricky, but
certainly should be doable.

David

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Brian at discountcoffee

Apr 16, 2008, 12:53 PM

Post #4 of 7 (546 views)
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RE: SPF and Sender ID [In reply to]

So you can have both txt files in your dns one for spf and one for sender
id?

For some reason I thought I read somewhere you couldn't, not sure of the
source if I find it I will let you know.

Here is my spf:
v=spf1 mx ip4:72.19.246.107 include:secureserver.net -all

Here is what I thought I would use for sender id:
spf2.0/pra mx ip4:72.19.246.107 include:secureserver.net -all

Now I am confused as to which of these I am supposed to use "spf2.0/pra",
"spf2.0/mfrom", or "spf2.0/mfrom,pra" to start the sender id.

Thanks
Brian

-----Original Message-----
From: Steve Yates [mailto:steve[at]teamITS.com]
Sent: Wednesday, April 16, 2008 12:08 PM
To: spf-help[at]v2.listbox.com
Subject: RE: [spf-help] SPF and Sender ID

Dave Peters wrote on 4/16/2008 11:28:42 AM:

> Is it possible to setup both SPF and Sender ID? I read
> some articles and suggestion that they are not
> co-exist together.

They can. Sender ID will try to use your SPF record, but you
can set up a Sender ID record as well. We have two, an SPF record and a
Sender ID record that uses "spf2.0/mfrom" to force identical behavior to
our SPF record.

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- (A)bort, (R)etry, (P)retend this never happened...

~ Taglines by Taglinator - www.srtware.com ~

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steve at teamITS

Apr 16, 2008, 1:38 PM

Post #5 of 7 (546 views)
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RE: SPF and Sender ID [In reply to]

Brian Moore wrote on 4/16/2008 2:53:16 PM:

> So you can have both txt files in your dns one for spf and one for
> sender id?

Yes.

> Now I am confused as to which of these I am supposed to use
"spf2.0/pra",
> "spf2.0/mfrom", or "spf2.0/mfrom,pra" to start the sender id.

"spf2.0/mfrom" is the same meaning as SPF. The "pra" is the
part Sender ID tries to add, so technically those may be different. If
you are happy with your SPF record I would use "spf2.0/mfrom."

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- "I'd like a hot dog," Tom said frankly.

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Brian at discountcoffee

Apr 16, 2008, 1:57 PM

Post #6 of 7 (543 views)
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RE: SPF and Sender ID [In reply to]

What about just using the last one "spf2.0/mfrom,pra"? From looking at it I
would think you get the best of both but I could be very very very wrong.

-----Original Message-----
From: Steve Yates [mailto:steve[at]teamITS.com]
Sent: Wednesday, April 16, 2008 3:39 PM
To: spf-help[at]v2.listbox.com
Subject: RE: [spf-help] SPF and Sender ID

Brian Moore wrote on 4/16/2008 2:53:16 PM:

> So you can have both txt files in your dns one for spf and one for
> sender id?

Yes.

> Now I am confused as to which of these I am supposed to use
"spf2.0/pra",
> "spf2.0/mfrom", or "spf2.0/mfrom,pra" to start the sender id.

"spf2.0/mfrom" is the same meaning as SPF. The "pra" is the
part Sender ID tries to add, so technically those may be different. If
you are happy with your SPF record I would use "spf2.0/mfrom."

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- "I'd like a hot dog," Tom said frankly.

~ Taglines by Taglinator - www.srtware.com ~

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steve at teamITS

Apr 16, 2008, 2:18 PM

Post #7 of 7 (545 views)
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RE: SPF and Sender ID [In reply to]

Brian Moore wrote on 4/16/2008 3:57:25 PM:

> What about just using the last one "spf2.0/mfrom,pra"? From looking at
it I
> would think you get the best of both

It's not really a "best of"...it depends on whether the list of
servers that deliver mail using that domain's MAIL FROM (mfrom) is the
same list as the list of servers that use the From: header (pra) for
that domain. They could be different.

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- If a man is alone in a forest, is he still wrong?

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