主题: iRedMail 发送邮件到外网报超时

Sep 17 16:31:37 mail postfix/smtp[20687]: connect to mx3.qq.com[203.205.176.240]:25: Connection timed out
Sep 17 16:32:08 mail postfix/smtp[20687]: connect to mx3.qq.com[184.105.206.30]:25: Connection timed out
Sep 17 16:32:38 mail postfix/smtp[20687]: connect to mx3.qq.com[184.105.206.82]:25: Connection timed out
Sep 17 16:33:08 mail postfix/smtp[20687]: connect to mx3.qq.com[184.105.206.85]:25: Connection timed out
Sep 17 16:33:38 mail postfix/smtp[20687]: connect to mx3.qq.com[184.105.206.31]:25: Connection timed out