Den 29.06.2025 15:40, skrev Dmytro Alieksieiev via Postfix-users:
Hi Jorge,
To have SMTPUTF8 enabled in system it should be supported by all
components of mail system.
If you have LMTP as f.e. Dovecot which not yet production ready for
SMTPUTF8 (at least from my view, as it only got support of it couple
of months ago and I would not rush deploying it on Prod)
About that, do you know how the dovecot-lda binary behaves with UTF8
emails?
It *should* only bother about the envelope headers I'd think? So, as
long as recipient localpart is 7bit, I should be OK with allowing utf8
on incoming? I've had separate outgoing/incoming paths like you suggest,
with smtputf8_enable=no on local deliver, sendmail submit and smtp
submit, but it feels *wrong*. I'm not using lmtp for local delivery for
some reason I can't remember. I've got concurrency_limit and
recipient_limit = 1 for local delivery, so access and locking should be
OK. Filtering and filing works well with dovecots imapsieve.
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