On Mon 31/Jan/2022 18:43:52 +0100 Geoff Mulligan via mailop wrote:
1. If a recipient on an email message is both in the To: or Cc: and on the
mailing list, should the listserver send the message to the recipient:
a) By default
Send it by default, but let it be configurable. The standard wording is:
Servers SHOULD
simply utilize the addresses on the list; application of heuristics
or other matching rules to eliminate some addresses, such as that of
the originator, is strongly discouraged.
https://datatracker.ietf.org/doc/html/rfc5321#section-3.9
b) Not by default (but configurable)
c) Never
2. If a mailing list is in the BCC: should a message be delivered to the list:
a) Yes - always
All BCCs are delivered. Your MSA cannot know if it is a mailing list.
b) No - never
c) Configurable
d) Convert it to a CC:
Best
Ale
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