我在IIS6中设置了一个虚拟SMTP服务器,并尝试使用本地telnet到端口25,这似乎工作正常.在此阶段没有错误,我可以看到邮件消息出现在Queue文件夹中.

问题是邮件永远不会离开Queue文件夹.然后我尝试telnet到端口25上的远程邮件服务器但无法连接： –

telnet 209.85.227.27 25

Could not open connection to the host,on port 25: Connection Failed)

我检查了我的防火墙,并且有一个默认设置允许所有传出TCP流量没有限制.我甚至为传出的端口25流量设置了一个特定的规则,但无济于事.

然后我运行了SmtpDiag.exe命令

.\SmtpDiag.exe myemailaddress@serverdomain.com myemailaddress@gmail.com

并收到以下输出

Searching for Exchange external DNS settings.
Computer name is WIN-SERVERNAME.
Failed to connect to the domain controller. Error: 8007054b

Checking SOA for gmail.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.

Checking local domain records.
Checking MX records using TCP: gmail.com.
Checking MX records using UDP: gmail.com.
Both TCP and UDP queries succeeded. Local DNS test passed.

Checking remote domain records.
Checking MX records using TCP: gmail.com.
Checking MX records using UDP: gmail.com.
Both TCP and UDP queries succeeded. Remote DNS test passed.

Checking MX servers listed for myemailaddress@gmail.com.
Connecting to gmail-smtp-in.l.google.com [209.85.227.27] on port 25.
Connecting to the server Failed. Error: 10060
Failed to submit mail to gmail-smtp-in.l.google.com.

我可以做任何其他诊断来确定它是我的防火墙还是其他什么？我已删除防病毒软件以确保它不会导致问题.任何想法将不胜感激.