550 From domain must match authenticated domain

550 From domain must match authenticated domain

A 550 From domain must match authenticated domain error occurs when you attempt to send email from exampledomain1.co.za and your smtp authentication uses a different domain name such as exampledomain2.co.za.
If authenticating as exampledomain2.co.za, your return email address must contain exampledomain2.co.za and cannot contain another domain name
  • From domain must match authenticated domain, 550, from domain, must match, error, smtp
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