Hi all, I have recently setup my Azure server which is Centos 7.2, however, I can't send out email to Hotmail, it return below message:
Mail rejected by [url removed, login to view] for policy reasons. Reasons for rejection may be related to content with spam-like characteristics or IP/domain reputation. If you are not an email/network admin please contact your Email/Internet Service Provider for help.
And, if email received by Gmail, please check the attached image, it seems my email is not correctly setup?
Any advise? It seems about DKIM / SPF keys setting? But I tried to enable already.