我在多站点上安装了WP Mail SMTP插件,该电子邮件从父站点成功发送,但是,当尝试从子站点发送相同或其他电子邮件时,会出现以下错误:
ErrorInfo: The following From address failed: [email protected] : MAIL FROM command failed,RNPI Access denied by login ip protect
,550,SMTP server error: MAIL FROM command failed Detail: RNPI Access denied by login ip protect
SMTP code: 550SMTP server error: MAIL FROM command failed Detail: RNPI Access denied by login ip protect
SMTP code: 550
有人能建议我怎么解决这个问题吗?