Windows 10: Microsoft mailbox: I can receive emails but no longer send them

Hello,


Since a recent update, my mailbox can receive emails but no longer send them...

It happens on any network, my internet connection works perfectly fine, the destination address is correct (I can send from Gmail), and its not a question of email size.




Has anyone an idea?


Thanks!

:)

 

How to enable 'send as' in Outlook (Office 365 email)

It makes a huge difference. You cannot set your own mailbox as a shared mailbox! It's a big NO!

In Admin panel, select Users > Active Users, select your name, select Edit in right pane. Now select Email addresses. All addresses listed here (primary and other addresses) cannot be used as shared mailbox:




If you try you will get an error message telling you it cannot be used:




You must create the shared mailboxes separately, using any of the existing personal mailboxes is out of the question.

 

Can send Email but can't receive

since opening the new Windows 10 Mail app, I can no longer receive email in Outlook.com nor live mail. Ironically I can send emails from Outlook and Live Mail, just can't received. I've checked the sync processes and everything seems to be set. Prior to
opening this app, everything worked fine. Can't delete the email address from the Mail App as its set as my Microsoft account...Any suggestions?

 

How to enable 'send as' in Outlook (Office 365 email)


Create a shared mailbox in O365 admin panel if not already created:



(Click to enlarge.)

When done, add members by selecting the mailbox and selecting Edit members on the right pane (#1). When members have been correctly added / removed, select Edit more properties (#2):



Select Mailbox delegation, remove the user you don't want to give access to the mailbox from Full Access, leave the user in Send As:




Save the settings.

That's it. The user gets a notification about missing permissions when trying to open the mailbox, but can still send using the shared mailbox name: