Stopping messages without To: or Cc: header(s)

Glenn Steen glenn.steen at
Sun Nov 22 09:02:57 GMT 2009

Is there explicit support for this type of rejection in the standard?
I thought it only implied...;-)
Many distribution list thingies use this, not only baddies. I suppose
you've analysed it a bit already...?
Anyway, there's no obvious way to do it in Postfix, due to the
"operate on one line at a time" thing. Simplest would likely be to use
a SpamAssassin rule and the rule hit thing in MS.

2009/11/21, Hugo van der Kooij <hvdkooij at>:
> On 20/11/09 23:16, Ralph Bornefeld-Ettmann wrote:
>> Hugo van der Kooij schrieb:
>>> On 20/11/09 21:20, Garrod M. Alwood wrote:
>>>> Hey, I agree with both of you, but when it's a newsletter the boss
>>>> wants, then I do as I say and go yes sir. Thats all I'm saying. An
>>>> you could use a header rule in postfix.
>>> I have not found a way to write a postfix expression to match a
>>> missing set where neither the To: or the From: lines are set.
>>> Hugo.
>> would you please share it with me/us?
> I can't share what I don't have. I would assume that was obvious.
> Hugo.
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Skickat från min mobila enhet

-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se

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