使用UTF8会导致发件失败

[chuyu5762]

Operating System

Linux

OS Version

Ubuntu 2404

System Architecture

x86_64

Docker Version

Docker version 28.5.1, build e180ab8

Docker Compose Version

Docker Compose version v2.40.1

Reproducible in Latest Version?

Yes, occurs in the latest stable release

Reproduction Steps

no

Observed Behavior

SMTPUTF8 is required, but was not offered by host dovecot[172.66.1.5] --

Expected Behavior

发送失败

Supplemental Information