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Re: [school-discuss] unsubscribe messages DO NOT WORK if sent here
On Monday 27 June 2005 20:27, R.M.Deal wrote:
> Well, if you have patience. I just tried this Leon's message itself
> and found the attached lines after at least a page of irrelevant
Yes. The headings are meaningful to email handling programs. Any header
starting "X-" is explicitly defined by the standard as meaningless
within the standard, and therefore available for "private" functions.
The page of "rubbish" before the header you found has to come before it
because otherwise certain picky MTAs (email transport programs) such as
MS-Exchange will throw a hissy-fit if they're in the wrong order, even
though the MTA standards say not to throw a hissy fit; to accept the
headers in any order.
It is considered polite to include unsubscribe instructions in the
headers to avoid cluttering everyone's screen with them on every
message. However, MS-Outlook carries an unenviable distinction in being
the least helpful MUA (Mail User Agent, what most of us call "an email
program") in the world WRT getting access to the unadulterated email
MS-OL was also one of the first major MUAs to actively encourage TOFU
("top-posting"). Top-posting combined with readable unsubscribe
instructions equals reams and reams of copies of the unsubscribe
instructions in any archive or digest of the list. So... heads you
lose, tails they win.
MajorDomo's approach is reasonable, but I prefer MailMan, which uses
standard headers that standards-compliant MUAs will recognise and offer
as an "unsubscribe from this list" button.
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