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如何是公司里的所有用户都使用一个邮件发送服务器对外发送邮件,求指导,或者说下邮件发送服务器优先权的问题,我这里每次都是只调用优先权最高的,不管发没法出去都停了,但是设置-邮件-消息 里有数据记录。也就那个邮件发送服务器所对应的用户可以发出邮件。没法出去的对应QQ邮箱里也没SMTP登录记录以上都是在 检测连接正常 的情况下