Remote Server returned '550 5.7.501 Access denied, spam abuse - Microsoft Community

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anyone else receiving "remote server returned '550 5.7.501 access denied, spam abuse detected." when attempting send from 

hi jignesh,

seems sending account has been banned due detected spam activity. admin can unblock blocked office 365 email account via using exchange admin center.

• go eac, navigate protection > action center.
• select search icon , enter smtp address of blocked user.
• click unblock account in description pane.
• click yes confirm change.

more detailed information, please refer article: removing user, domain, or ip address block list after sending spam email

note: if not admin please contact office 365 admin follow steps above.

best regards,
shyamal


Office / Outlook / Windows 10 / Office 365 for business



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