我用IIS配置了Windows 2016,以便从php接收邮件()并将它们发送到stmp.sendgrid.net。但是,如果我通过mail() php函数发送电子邮件,SendGrid将接收该请求,但通过以下错误阻止它:
REASON550 5.7.1 [167.89.55.39 11] Our system has detected that this message is not RFC 5322 compliant: Multiple 'From' headers found. To reduce
我有一个使用Exim和ASSP的服务器centos 7,我需要使用另一台服务器的外发邮件--多么智能的中继。host domain_of_my_centos_host [176.XX.XX.205] refused to talk to me: 451 4.7.1 Please try again later
我试图找到这方面的方法,或者知道这是否是我的配置错误。
│ Internet with smarthost:Outgoing mail is sent using a smarthost.│ All mail is sent to another machine, called a 'smarthost│ Internet with smarthost:Outgoing mail is sent using a smarthost.