vi /etc/dovecot/conf.d/10-auth.conf
去掉disable_plaintext_auth前面#,修改为:
disable_plaintext_auth = no
vi /etc/dovecot/conf.d/10-ssl.conf
修改为:
ssl = no
重启dovecot服务:
service dovecot restart
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原文:https://www.cnblogs.com/vaen/p/14151148.html