550 Rejected by Header Based Anti-spoofing Policy | Community

KCS_Integration

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550 Rejected by Header Based Anti-spoofing Policy

Forum|Forum|5 years ago
September 10, 2020
0 replies
3534 views

Issue

Email bounces with Error: 550 Rejected by header based Anti-Spoofing policy

Solution

This error can happen if:

DKIM/SPF configuration is incomplete for the from domain in the sending email address.

https://experienceleague.adobe.com/docs/marketo/using/getting-started-with-marketo/setup/configure-protocols-for-marketo.html?lang=en

Marketo

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