Frank Ellermann wrote:
Hector Santos wrote:
Per x822, Sender: is OPTIONAL and not a network required
control header. It is more information than anything else.
We are not reading the same copy of 2822upd.
You're right. We are talking about the current standards, 822 and 2822,
which ever you wish to follow.
PER RFC 822, the Minimum Requirement is:
A.3. COMPLETE HEADERS
A.3.1. Minimum required
Date: 26 Aug 76 1429 EDT Date: 26 Aug 76 1429 EDT
From: Jones(_at_)Registry(_dot_)Org or From:
Jones(_at_)Registry(_dot_)Org
Bcc: To: Smith(_at_)Registry(_dot_)Org
Note that the "Bcc" field may be empty, while the "To" field
is required to have at least one address.
If a system is running in legacy mode, that you are incorrect to state
it is a required. Are you ready to state that legacy systems do not
exist or even modern systems who for some reason or another choose to
run in legacy mode?
PER RFC 2822,
The only required header fields are the origination date field and
the originator address field(s).
Per section 3.6.2 SENDER SHOULD only be used when the FROM is not the
actual transmitter of the message. It is stated very clear:
If the originator of the message can be indicated
by a single mailbox and the author and transmitter are identical, the
"Sender:" field SHOULD NOT be used. Otherwise, both fields SHOULD
appear.
Therefore, as I said, it is not a REQUIRED field and only useful when
the AUTHOR is not the actual transmitter.
For you to state it is a requirement in ALL cases and therefore implying
it is a fundamentally essential for email operations, well, you know
perfectly well it is not true.
--
Sincerely
Hector Santos, CTO
http://www.santronics.com
http://santronics.blogspot.com
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