On Tue, Jun 15, 2021 at 01:32:34PM -0400, John R Levine wrote:
Nobody I've seen tags messages as EAI in their internal queues.
Postfix does.
I think they all notice if an EAI message is sent to a non-EAI server,
and a few in that case do odd things like turning a UTF-8 local part
into a MIME encoded word in the envelope.
Postfix does not (erroneously) MIME encode structured header parts.
--
Viktor.
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