Using Outlook for iOS for personal email and calendar management
Hello, thank you for reaching out.
- May I please know the exact error message you receive when you sign in with your Microsoft account here - https://account.microsoft.com/
- Is your Microsoft account hacked/blocked/forgot password/deleted?
- Do you still have the recovery Phone number or email address to Verify Your identity?
- When was the last time you were able to sign in successfully to your Microsoft account?
Note - If you have two-step verification turned ON, you cannot use the account recovery form to recover your account.
Another important thing to note here is that Microsoft takes the Account's security and privacy very seriously. So, Microsoft Support will not be able to grant you access to your account, you will be sent back to the Account Recovery pages.