This warning means the domain in your From header does not match the domain in your Return-Path header.
Cloud email platforms do this by default. The platform uses its own domain in the Return-Path to track and handle bounced emails.
Spam filters largely ignore this warning, so it will not hurt your deliverability. Modern filters look at DMARC validation instead. If your SPF and DKIM records are set up correctly and your DMARC alignment passes, mail servers will deliver your messages normally. You do not need to make any DNS changes or take any action.
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