On 9/1/17 6:23 AM, Tom Browder wrote:
On Thu, Aug 31, 2017 at 21:44 Richard Damon <rich...@damon-family.org
<mailto:rich...@damon-family.org>> wrote:
...
One point of information about Gmail, which may want you to change
your
test setup a bit. Gmail suppresses duplicate messages (as
determined by
the Message-ID), and (unless the mailing list changes the message-id,
which is generally a bad idea) Gmail will see the message from the
list
as a duplicate of the message sent (even if wildly reformatted)
and thus
suppress the message from the list. To test Gmail - list - Gmail
interactions, you need two Gmail accounts.
Interesting, Richard! Then how do mailing list manager programs deal
with the same message going to multiple accounts? Probably something
like the bulk mail header I guess.
Thanks.
-Tom
The trimming of duplicates is a MUA level function, not an MTA level, so
every GMail user get the message, then it is eliminated at the MUA to
those that already have it (the sender or anyone directly sent it also).
It would be a major bug if they only delivered to just a single user a
message directed to several.
--
Richard Damon
