寫寫筆記

上星期五從公司Server寄出一封信到Gmail被退信,本來不以為意,今天發現Mail Server Queue住了一堆要寄到Gmail的信件 查了一下Mail Server的Log (我們公司是用Notes) ================================================================== 2012/03/19 上午 08:40:16  Router: No messages transferred to GMAIL.COM (host GMAIL.COM) via SMTP: The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists. 2012/03/19 上午 08:40:21  Router: Failed to connect to SMTP host GMAIL.COM because The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists. ================================================================== Mail Server的主機上 Tracert Route Gmail的IP也沒問題,所以就懷疑Firewall在作怪 在Cisco ASA的Log中發現有一些奇怪的Log,而這些Source IP是Google的IP,Port是80或443 ================================================================== 2 Mar 19 2012 10:50:04 106001 74.125.31.121 80 ...