bcc settings on mailing lists
tim.bell at gmail.com
Mon Jan 30 22:04:43 PST 2012
> Can we get some kind of global change to the mailing lists so that a bcc
> does not require moderator approval?
bcc: header lines are typically not passed to the recipient (that is
what makes it a blind carbon copy). Refer to section 4.5.3 of RFC
Unfortunately this loophole also describes a vector used by arriving SPAM.
Most email held for moderation by mailman is due to "Post by
non-member to a members-only list", but second place is "Message has
implicit destination", which is how mailman treats BCC: emails.
Looking at the current mailman/logs/vette file on mail.ojn (28MB,
going back to September of 2009) we have this breakdown of messages
held for moderation:
5 Message may contain administrivia
19 Too many recipients to the message
29 The message headers matched a filter rule
60 Post to moderated list
201 nnnnnn bytes with a limit of mmm KB
871 Message has implicit destination
79870 Post by non-member to a members-only list
While the BCC: messages are ~100x less than the non-member messages,
that is still large enough that I hesitate to open up the rules and
allow them all through without moderation.
Do others have thoughts on this?
Cheers and Best Regards-
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