Forum Discussion
Sending email as alias in office365?
I used to have my domain email hosted in office 365. The reason i switched was because of a lack of a feature i really needed. You had the ability to create multiple aliases in office 365 so you coul...
Joey Bergen thanks, these steps helped me to configure it for my case (had to use classic GUI of exchange admin to find the settings). To other office365 email addresses, this works, but to some other addresses it doesn't; "This message could not be sent. You do not have the permission to send the message on behalf of the specified user. " Thought it had to do with some delay in processing of the changes, but next day still have the issue. Or do I also need to have changes on the DNS level, for example to inform target mail servers to that my domain A is allowed to send messages of my domain B...? any ideas?
a separate issue is adding all the appropriate dkim, dmarc spf to your dns for each domain