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邮件发送一些问题



我用的是Dm368的芯片,现在要实现邮件的发送功能,在测试时老是出现这样的错误:SMTP server problem No route to host!

查了一下,说这个错误时防火墙拦截造成的。。

开发板上有防火墙?

求在线支持!谢谢。

这是我的邮箱设置: