Author: Bill Hacker Date: To: exim-users Subject: Re: [exim] Unknown Sender
Marc Sherman wrote:
> Marc Sherman wrote:
>
>> Robert Cates wrote:
>>
>>> OK, here they are (one of the differences is the @kormar.net (from
>>> Outlook)
>>> and @kormar.de (from Thunderbird) addresses, but I don't see where that
>>> could matter)...
>>
>>
>>
>> I'll bet that's it, in fact. Try reconfiguring your outlook account
>> to send as kormar.de, and vice-versa, and see what happens.
>
>
> It's SPF. kormar.net has an SPF record, kormar.de does not.
>
> I'd eliminate the kormar.net SPF record, if I were you.
>
> - Marc
>
Could be much more basic than that, as previously stated.
Note that T-Bird has supplied a message-id header.
Outlook has not done so.
We were rejecting on that in an Exim 'invalid headers' acl.
Now we just warn and add an 'X-WinIdiot' header.
