Undeliverable E-Mail - Microsoft Community
Office / Outlook / Windows other / Office 365 for business
every time try send email response back.
"your message couldn't delivered because weren't recognized valid sender. common reason email address suspected of sending spam , it's no longer allowed send messages outside of organization. contact email admin assistance."
hi ericlongworth,
if office 365 account , cannot send emails out, please contact admin check if account in action center. this, please go exchange admin center (eac) admin's credential: protection > action center.
if account in action center list, please refer link release account.
if issue persists after releasing account or account not in list, please sent complete non-delivery report (ndr) analysis in private message. , provide information below analyze:
please contact if have update.
thanks,
iry
Office / Outlook / Windows other / Office 365 for business
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