[Gllug] Confusion about the "Sender" field in email headers.

[Chris Bell]

On Sun 28 Nov, Progga wrote:
> 
> 
> Hi all,
> I am wondering if anybody can clear my confusion about the "Sender" field in
> email headers.  My understanding is that this field is required when an email
> server is sending an email on someone's behalf.  For example, this mail will
> carry my gmail address in the From field although it is coming from the gllug
> server.  So the Sender field contains gllug's return address and the email
> will go to the inbox instead of the spam box.
> 
   As I understand it, the destination should be able to do a DNS check
based on the stated sender address to determine whether the IP address of
the sender matches that in the header. However not all MTAs actually check.

-- 
Chris Bell www.chrisbell.org.uk (was www.overview.demon.co.uk)
Microsoft sells you Windows ... Linux gives you the whole house.

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