I've been using my Hotmail account for 15+ years and now I can't send emails from it anymore (either from the web browser or from Outlook). I can login just fine, and I've reset my password and it still doesn't work.
To clarify, the message appears to send correctly, but there's no sign of it at the recipient's account. It's not in their junk mail folder either. There's no indication that the message was not delivered, or that something went wrong. It just never gets to its destination. I've tried sending emails to several of my friends, and none of them get my emails anymore, starting yesterday...
I'm guessing Microsoft has wrongly identified my Hotmail address as a spammer, so my messages now appear to be sent, but don't get delivered...
It's probably no coincidence, but I was experimenting with sending an HTML email, for a marketing campaign my company is planning next week. I probably made a few mistakes, such as using all-caps titles (for stylistic reasons), not yet including an unsubscribe link (I was just sending the messages to myself for testing, while I figured out the weird HTML/CSS rules of email marketing), and perhaps not including a text email alongside the HTML email.
I've checked the following two links to see if my IP address was black-listed, and it was not:
Is there anything I can do to recover my account? I don't want to switch email addresses and notify all my contacts, and change all my hundreds of account logins that use that email address...