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550 Error: "Message could not be sent to the following recipients" - Rebel Cloud Email

550 Error: "Message could not be sent to the following recipients" - Rebel Cloud Email

Updated December 06, 2022 17:38

If you have tried to send emails and had the following error, it is possible your domain's DNS has not yet been set up, or has recently been updated and the changes have not yet propagated.

Message could not be sent to the following recipients: ["example@example.com" <example@example.com>] (550 - 550 5.7.1 Sender rejected - OXSUS004_303 - https://postmaster-oxsus.vadesecure.com/outbound_error_codes/#_303

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