I set up my email a couple of days ago in office 365 and sender's have been unable to send emails to me, as they are bouncing back. The error that is being received is 550 550 #5.1.0 Address rejected. (state 13).
The email worked fine for about 2 days, but has stopped working as of today. The domain name is rsdconsultingllc.com.
Can anyone provide assistance with this?
Thank you,
Randy