We block SMTP by default to deter spammers from launching accounts and then ruining the reputation of our IP ranges. This block can be lifted upon request. In the case of the instance in question, this block had already been lifted.
This is an issue specific to your instance and its configuration unfortunately, there is nothing on the hypervisor host or network segment that would prevent this server from sending mail. We appreciate your understanding regarding this matter. 作者: cgs3238 时间: 2017-4-10 10:56
不能发邮件，没错，就是不能作者: darksheen 时间: 2017-4-10 11:00
他说他们已经把你的vps的25端口放开了，你可以发邮件。发不了是你自己配置问题，和他们无关作者: 悠悠 时间: 2017-4-10 11:09
