Dovecot's acl plugin can prevent deletion of messages,it works very well! I want: Some ips can delete messages, other ips can not delete messages,can anyone help me? hfh at cndns.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20190813/68382290/attachment.html>