Hmmmmm, how did you know my alter ego!

I'm your typical admin that is new to SPF , so I am now learning a bit
more. I now understand more what SRS is about as well.

So really it somes down to , on failure:

Either
1) the sender gets an email from [EMAIL PROTECTED] that the email
sent to [EMAIL PROTECTED]  did not work out, which confuses the hell out of
the sender, cause he/shee sent it to [EMAIL PROTECTED]
2) the sender gets an email from [EMAIL PROTECTED] that the email
sent to [EMAIL PROTECTED]  did not work out, which confuses the hell
out of the sender cause the person exists.

Does this not mean that exchange will need to do this by default when
setting a CR (assuming MS will provide this SRS functionality in a
patch)


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chris
Scharff
Sent: Wednesday, 25 August 2004 10:34 a.m.
To: Exchange Discussions
Subject: RE: SPF Warning

That's correct. That is the RFC compliant behavior by Exchange for both
the scenario I described and instances where an external recipient is
specified on a mailbox as an alternate recipient.... oh and where a
member of a DL is an external contact.

How "SPF not happy" AOL will be at that depends on the settings used by
the admin who created the SPF record for their domain. I have little
confidence that folks who are unable to understand what a PTR record is
or that an Mx record must be an A record are going to choose the correct
settings for their SPF records.

<Barbie>DNS is hard.</Barbie>

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:bounce- 
> [EMAIL PROTECTED] On Behalf Of Dean Cunningham 
> Posted At: Tuesday, August 24, 2004 5:17 PM Posted To: swynk
> Conversation: SPF Warning
> Subject: RE: SPF Warning
> 
> You lost me on that one Chris. (mainly because we do not do forwarding

> via CR ,but rules ..but that is another story...)
> 
> I send an email to [EMAIL PROTECTED] Email comes into the store and

> then is forwarded back out to [EMAIL PROTECTED] via the IMC to aol.com. So 
> what you are saying is the message that goes from your exchange server

> to [EMAIL PROTECTED] says it is from [EMAIL PROTECTED] (therefore SPF not 
> happy), rather than a message from [EMAIL PROTECTED] to [EMAIL PROTECTED]
> 
> Does that sound right?
> 
> cheers
> Dean
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
Chris
> Scharff
> Sent: Wednesday, 25 August 2004 7:50 a.m.
> To: Exchange Discussions
> Subject: RE: SPF Warning
> 
> It's not /you/ you have to worry about it's /everyone else/. Let's say
I
> have an employee who has a MessageOne e-mail address but receives his 
> mail at AOL. I create a CR in the GAL for [EMAIL PROTECTED] and add a 
> secondary address of [EMAIL PROTECTED] If one of your users e-mails

> him AOL is going to check /your/ SPF record against /my/ forward. And 
> depending on how you've configured your SPF records, it may fail.
> 
> So in order for forwarding not to break for your users, everyone else
on
> the planet has to upgrade their servers to be compliant with SPF 
> (regardless of whether or not they choose to implement SPF records of 
> their own). Since there's no announced patch or upgrade for currently 
> shipping version of Exchange, that presents a minor problem for anyone

> who happens to be running our shared, but rather obscure mailer. Other

> less obscure mailers have similar issues.
> 
> Given the snail's pace at which many companies upgrade their mail 
> servers, the time until there's a significant number of mailers who 
> support this is pretty substantial.
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:bounce- 
> > [EMAIL PROTECTED] On Behalf Of Paul Hutchings 
> > Posted At: Tuesday, August 24, 2004 1:06 PM Posted To: swynk
> > Conversation: SPF Warning
> > Subject: RE: SPF Warning
> >
> > My understanding was that if you do mail forwarding/rewriting SPF
can
> > break things without  -
> >
> > http://spf.pobox.com/srs.html
> >
> > Paul
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]
> > > Behalf Of Chris
> > > Scharff
> > > Sent: 24 August 2004 12:19
> > > To: Exchange Discussions
> > > Subject: RE: SPF Warning
> > >
> > >
> > >
> > > > I only have a few domains, we don't do email
forwarding/rewriting
> > >
> > > It's not a question of whether you do email forwarding/rewriting.



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