Remote Server returned ‘550 5.7.708 Service unavailable. Access denied, traffic not accepted from this IP – using Send Email with Option in Power Automate


While trying to send an email using Send an email with options action in Power Automate to my email id from a trial account, got the access denied error message.

Check out the wonderful post on sending Approval Emails to external users 

https://debajmecrm.com/approvals-with-external-users-in-power-automate-without-consuming-power-automate-flow-license/

The error message –

The cause of this issue was because we were using the trial tenant.

https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-700-through-5-7-750#57708-access-denied-traffic-not-accepted-from-this-ip

Seems like the resolution is to contact support for an exception till we purchase the license.

Check the below post – 

https://blog.thenetw.org/2019/10/31/remote-server-returned-550-5-7-708-service-unavailable-access-denied-traffic-not-accepted-from-this-ip/

Hope it helps..

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Author: Nishant Rana

I love working in and sharing everything about Microsoft.NET technology !

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