postfix 遇到的问题 disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0

tail -f /var/log/maillog

ail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=1/426, del=1/1, size=410
Sep  9 11:18:04 mail postfix/smtpd[9123]: disconnect from localhost[127.0.0.1]
Sep  9 11:18:30 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9180, secured
Sep  9 11:18:43 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:20:00 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9187
Sep  9 11:20:00 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:22:01 mail dovecot: auth: mysql: Connected to localhost (mail)
Sep  9 11:22:01 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9198
Sep  9 11:22:01 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:24:02 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9203
Sep  9 11:24:02 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:26:06 mail dovecot: auth: mysql: Connected to localhost (mail)
Sep  9 11:26:06 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9212
Sep  9 11:26:06 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:28:06 mail dovecot: auth: mysql: Connected to localhost (mail)
Sep  9 11:28:06 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9222
Sep  9 11:28:06 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:30:07 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9228
Sep  9 11:30:07 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:32:08 mail dovecot: auth: mysql: Connected to localhost (mail)
Sep  9 11:32:08 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9238
Sep  9 11:32:08 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:34:09 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9243
Sep  9 11:34:09 mail dovecot: pop3-login: Login:top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:36:10 mail dovecot: auth: mysql: Connected to localhost (mail)
Sep  9 11:36:10 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9252
Sep  9 11:36:10 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep  9 11:38:11 mail dovecot: pop3-login: Login: user=<qq@*.com>, method=PLAIN, rip=192.168.181.220, lip=192.168.181.203, mpid=9258
Sep  9 11:38:11 mail dovecot: pop3(qq@*.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0

我在服务器上测试收发信都正常。

但我用outlook发信看到如上的log  这是正常的 按我的理解，

outlook每隔几分钟就会去mail服务取信。如何有信就收下来。没有就会断开。