WHMCS Email Sending Failed – SMTP connect() failed
WHMCS Email Sending Failed – SMTP Error: Could not authenticate
Validation Error: The following From address failed: noreply@yourdomain.com : MAIL FROM command fail
Validation Error: The following From address failed: noreply@yourdomain.com : MAIL FROM command failed,mail from account doesn’t conform with authentication (Auth Account:support@yahuhost.net|Mail Account:noreply@yourdomain.com) ,440,SMTP server error: MAIL FROM command failed Detail: mail from account doesn’t conform with authentication (Auth Account:support@yahuhost.net|Mail Account:noreply@yourdomain.com) SMTP code: 440
首先要排除SMTP端口是否被防火墙限制,如防火墙已解除SMTP Port限制,还发生如上错误,请检查以下设置
1. 检查WHM ->> SMTP restriction
![](https://www.aiyahu.com/wp-content/uploads/2020/12/whm-smtp-1024x397.png)
2.检查WHMCS系统设置(以WHMCS 8.0为例)
以下图片所示的邮箱地址设置要一致,否则会报错
![WHMCS Email Sending Failed](https://www.aiyahu.com/wp-content/uploads/2020/12/WHMCS-mail1-1024x296.png)
![WHMCS Email Sending Failed](https://www.aiyahu.com/wp-content/uploads/2020/12/WHMCS-mail2-1024x637.png)
![WHMCS Email Sending Failed](https://www.aiyahu.com/wp-content/uploads/2020/12/WHMCS-mail3.png)
3. 设置完成,WHMCS 发件SMTP问题成功解决