Importing/Uploading PST to Office 365
Open and login to Office 365 using Admin credentials. Then Go to https://protection.office.com/import click on ‘New Job Add Icon’ Enter a name for the job and click Next Select Upload your data then click Next …
No external emails on exchange
If internal emails are being processed by exchange but external emails are not coming through most likely you have an issue with back pressure. In Event Viewer under the application log search for event id …