On Thu, Mar 07, 2024 at 01:38:15PM +0100, mhbeyle--- via Exim-users wrote:
> When a user groups several recipients under the To, Cc or Bcc fields, the
> message is encoded with a unique ID. Some relay providers impose limits on
> the number of such recipients.
> Is there any way to avoid this and is it possible, when faced with an
> envelope with more than one recipient (or a specific number of recipients),
> to configure a different ID for each of the messages being sent?
> I have been able to do some test with the max_rcpt parameter, but it does
> not work because the message ID remains the same.
Try to set max_rcpt=1 and modify Message-Id via transport script,
invoked by transport_filter option. Say, add nanoseconds to the left
side of msg-id, or substitute it with arbitrary generated msg-id.
--
Eugene Berdnikov
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