Hi Noah and thank you. My apology, I made the error converting the old configuration.
> This looks like the problem. Sieve is a delivery plugin, for use with > LDA or LMTPD. See https://doc.dovecot.org/2.4.1/core/plugins/sieve.html > Notice that in the examples the plugin is enabled in a mail_plugins > that's nested within a delivery protocol block.

