Sending, receiving, and organizing email in Outlook.com
Hi, Charles Coles
This could be a temporary service problem, but it may also be limited to your account, mailbox storage, or the Outlook app. Full Microsoft cloud storage can prevent both sending and receiving messages.
Here are some suggestions you can try:
Check the Microsoft service status page to see whether Outlook is currently affected.
Sign in at Outlook.com in a web browser and send yourself a simple test email without an attachment. If webmail works, the problem is likely with the Outlook app rather than the account.
Check your Microsoft storage and mailbox storage. Delete unneeded messages from Deleted Items and Junk Email, then empty those folders.
Check the Outbox for a stuck message, especially one with a large attachment, and delete or resend it without the attachment.
If you recently changed your password, sign out of Outlook and sign back in with the new password.
If it still fails, please share whether you use Outlook.com/Hotmail or another provider, which Outlook app you use, and the exact error message.
Thank you for your patience in reading, I hope this information has been helpful to you.
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