Forum Discussion
Email sending error
For the past 2 days I have been unable to send any emails, receiving them is fine. Error reads "Your message couldn't be delivered because you weren't recognized as a valid sender. The most common re...
Did you contact your IT folks? They have a way for checking and unlisting the account, depending on the situation: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/removing-user-from-restricted-users-portal-after-spam?view=o365-worldwide
In case the IP itself is blocked: https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/use-the-delist-portal-to-remove-yourself-from-the-office-365-blocked-senders-lis?view=o365-worldwide
Unfortunately as a sole trader consultant I don’t have anyone! However I have had a successful call with Microsoft and all is now resolved. Thanks!
Johumber355 kindly assist with steps.
