我正在尝试托管一个 postfix 邮件服务器。我有一个带有固定 IP 的盒子，还有一个 mx 记录和 spf 记录，将我的盒子 IP 链接到我的 dns 记录。我可以远程登录到 alt4.gmail-smtp-in.l.google.com 25 但是当我发送邮件到[电子邮件受保护]，我仍然收到此错误
邮件q
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
CB502D9735* 389 Tue Jul 18 01:28:17 [email protected]
[email protected]
37A54D8C06 389 Tue Jul 18 00:26:34 [email protected]
(conversation with alt4.gmail-smtp-in.l.google.com[74.125.200.26] timed out while receiving the initial server greeting)
[email protected]
BBC43D9557 389 Tue Jul 18 01:11:20 [email protected]
(conversation with alt4.gmail-smtp-in.l.google.com[74.125.200.26] timed out while receiving the initial server greeting)
[email protected]
telnet alt4.gmail-smtp-in.l.google.com 25
Trying 74.125.200.27...
Connected to alt4.gmail-smtp-in.l.google.com.
Escape character is '^]'.