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Mail bounces with “550 sender rejected” or a Return-Path mismatch. What now?

Receivers reject mail when the From address, the envelope sender (Return-Path), and the authenticated sending domain don’t line up, or when you’re sending From a domain you’re not authorised to use. We set the General Contact / Sales Rep sender addresses to a domain you control, align the Return-Path with your relay, and make sure SPF authorises the actual sending host. Once the envelope matches the authenticated domain, the 550 rejections stop.

Kishan Savaliya
Kishan Savaliya
Adobe Certified Magento Commerce Developer
Ahmedabad [IN]working hours, replies within four hours
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