刚装好后可以发邮件,对方回复被退信
第二天无法收发邮件
下面是日志
Aug 31 03:20:03 mail postfix/smtp[8926]: connect to mx3.qq.com[203.205.176.240]:25: Connection timed out
Aug 31 03:20:03 mail postfix/smtp[8928]: connect to 163mx02.mxmail.netease.com[220.181.14.150]:25: Connection timed out
Aug 31 03:20:33 mail postfix/smtp[8927]: connect to mx2.qq.com[184.105.206.30]:25: Connection timed out
Aug 31 03:20:33 mail postfix/smtp[8927]: 7EAFA7E974: to=<xxxxxxxxx@foxmail.com>, relay=none, delay=3332, delays=3211/0.02/122/0, dsn=4.4.1, status=deferred (connect to mx2.qq.com[184.105.206.30]:25: Connection timed out)
Aug 31 03:20:33 mail postfix/smtp[8926]: connect to mx3.qq.com[184.105.206.85]:25: Connection timed out
Aug 31 03:20:33 mail postfix/smtp[8926]: connect to mx3.qq.com[2001:df6:f400::2808]:25: Network is unreachable
Aug 31 03:20:33 mail postfix/smtp[8926]: CBCD97F30D: to=<xxxxxxx@qq.com>, relay=none, delay=1625, delays=1503/0.03/122/0, dsn=4.4.1, status=deferred (connect to mx3.qq.com[2001:df6:f400::2808]:25: Network is unreachable)
Aug 31 03:20:33 mail postfix/smtp[8928]: connect to 163mx01.mxmail.netease.com[220.181.14.138]:25: Connection timed out
Aug 31 03:21:03 mail postfix/smtp[8928]: connect to 163mx01.mxmail.netease.com[220.181.14.139]:25: Connection timed out
Aug 31 03:21:03 mail postfix/smtp[8928]: 67BFE7F305: to=<15008472563@163.com>, relay=none, delay=1998, delays=1847/0.02/152/0, dsn=4.4.1, status=deferred (connect to 163mx01.mxmail.netease.com[220.181.14.139]:25: Connection timed out)

这些ip都可以ping通,但telnet无法连接
telnet: Unable to connect to remote host: Connection timed out