[kwlug-disc] Email received with no email address in the to: line

[Bob Jonkman]

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Happens all the time. The To: header doesn't actually determine the
recipient, that's done in the SMTP conversation with RCPT-TO. So, that
makes is easy to spoof To: headers, or omit them altogether.

But there's not enough info to determine how it happened to you. To
analyze that you'd have to provide all the headers in the message
(particularly the Received: headers), and then correlate those to the
logs of the MTAs identified in those Received: headers.

- --Bob.



On 2017-04-10 04:22 PM, Chamunks wrote:
> I'm wondering and if anyone else has had this before. The only
> reason I can think is that Gmail fetched an email from my new email
> server I setup using https://poste.io which is a docker runnable
> complete email solution with a proprietary panel on top of Foss
> software beneath it.
> 
> 
> 
> _______________________________________________ kwlug-disc mailing
> list kwlug-disc at kwlug.org 
> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
> 

- -- 


Bob Jonkman <bjonkman at sobac.com>          Phone: +1-519-635-9413
SOBAC Microcomputer Services             http://sobac.com/sobac/
Software   ---   Office & Business Automation   ---   Consulting
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