Rejected mails as spam - Microsoft Community


hi

when send email via smtp (smtp.office365.com:587 ) emails rejected, , receive mail microsoft outlook

generating server: he1pr08mb0938.eurprd08.prod.outlook.com

remote server returned '550 5.7.501 access denied, spam abuse detected. more information please go http://go.microsoft.com/fwlink/?linkid=526653'

regards,

khaled

hi khaled,

 

thanks posting here.

 

as know, issue may caused smtp address or ip address blocked eop. so, please let admin go exchange admin center (eac) check if smtp address/ip address blocking , delist it:

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

for detailed information, please see:

https://technet.microsoft.com/en-us/library/dn458545(v=exchg.150).aspx

 

if issue persists, we'd collect following information further assistance:

  1. the entire non-delivery report (ndr).
  2. your tenant information.

 

to protect privacy, have sent private message collect them.

 

regards,

rudy



Office / Outlook / Windows 10 / Office 365 for business



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