Promail recipe help (was [H-CHAT] Re: [H-GEN] Installing multiple Linuxes)

[Jason Parker-Burlingham]

[ Humbug *General* list - semi-serious discussions about Humbug and     ]
[ Unix-related topics. Posts from non-subscribed addresses will vanish. ]

"Harry Phillips" <hphillips at 4ward.com.au> writes:

> > Surely you mean:
> > :0 H
> > * X-Loop: *chat at lists.humbug.org.au
> > $DEFAULT.Humbug.Chat/
> >
> > Filtering on To: etc is evil, evil, evil.
> Ok, that begs the question why is filtering using ^TO_ a 'bad thing'?

Absolute worst is that it'll miss messages that are sent via Bcc:
(and maybe Cc: if you mess up the regex); slightly more broken is that
it may misfile stuff that's sent by a list subscribed to a list
(say).

Merely annoying is that it's hard to capture RFC-822 and descendants
using regular expressions, while other headers may have a more
easy-to-match style (indeed some are so regular I think of matching
the string generically and "autofiling" into a mailbox).

> And wouldn't messages sent to chat at humbug.org.au be missed using
> that recipe?

Well obviously one would have to modify it as detailed back up in the
thread a little.

> Pardon my ignorance of the really deep techno stuff but what is X-Loop
> anyway, and what is it used for?

The word "loop" hints that it's probably used by the mailing list
software to detect any loops---say if some recalcitrant decided to
subscribe the list to itself, or sendmail (or whatever) exhibited poor
behavior in the face of adversity.
-- 
||----|---|------------|--|-------|------|-----------|-#---|-|--|------||
| ``Ooooaah!                                                            |
|   I'm getting so excited about cheese-making I can't stand it!''      |
||--|--------|--------------|----|-------------|------|---------|-----|-|

--
* This is list (humbug) general handled by majordomo at lists.humbug.org.au .
* Postings to this list are only accepted from subscribed addresses of
* lists 'general' or 'general-post'.  See http://www.humbug.org.au/