Forum Discussion
All of my emails are getting rejected by recipients. Why?
All of my emails are getting rejected and this has never happened before. I get a response from MS Outlook that states "Security or policy settings at 'recipient' have rejected your message. The...
Hello, it is likely that you have found yourself on the list of blocked senders, you may need to regain your reputation by filling out a detailed form.
This is additional documentation:
https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/create-safe-sender-lists-in-office-365?view=o365-worldwide
https://sender.office.com/
https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/removing-user-from-restricted-users-portal-after-spam?view=o365-worldwide