spf-discuss
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Re: [spf-discuss] SPF vs DomainKeys.

2006-06-26 12:06:32
On Mon, 26 Jun 2006, Bernd Petrovitsch wrote:

On Sun, 2006-06-25 at 23:37 -0400, Stuart D. Gathman wrote:
[...]
A disadvantage of SPF is that correctly checking SPF requires knowing
all forwarders you have set up.  This can be a problem for many
non-technical end-users, and for email providers with non-technical
users.

And it is a problem if $ISP doesn't provide means (or users do not use
it - for whatever reason) to send email through $ISP MTAs.
At the moment there are voices saying that "SPF breaks legal email" -
just because this works now.

<sarcasm>
Yeah, and open relays are perfectly legal rfc2821 email also.  Why did
we have to go and break perfectly good email servers?  What am I supposed
to do if my outgoing SMTP server is down for whatever reason?  I used
to be able to just use any old MTA, and the mail would get delivered.
Now I am stuck waiting for my MTA to come back up, or else I have to
maintain multiple MTAs I am authorized to relay through - just in case
one goes down.  What a waste of resources.

Even worse, when I set up my own open relay to use as a general purpose
backup MTA that I can use anywhere, no one will accept any mail from it!!
And it is prefectly legal according to the RFCs!  That is truly broken
and unfair.
</sarcasm>

-- 
              Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

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