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Apologies if this is a stupid question (there is every chance that it is)....
I've recently upgraded to Office 365 for Education (from Live@edu). The upgrade all appeared to go well. The Live@edu set-up was still in a very basic configuration with a couple of test accounts.
I can log in and send email out from the 365 account, without any problems, but when trying to send email to the 365 account i keep getting a NDR.
I've checked the DNS settings and it appears to be okay, but I may be missing something obvious? Any advice would be appreciated....
I get the following NDR:
Delivery has failed to these recipients or groups:
A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk.
Diagnostic information for administrators:
Generating server: barracuda.ntyneside.ac.uk
#< #5.0.0 X-Spam-&-Virus-Firewall; [my.tynemet.ac.uk]: Name or service not known> #SMTP#
I went throught the whole process of registering the custom domain, and it worked perfectly this time - obviously something (not sure what) I did wrong first time round....