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I'm having trouble with an error: "550 Unable to relay" - Knowledgebase / Using Deskpro - Deskpro Support

I'm having trouble with an error: "550 Unable to relay"

Last updated: 8 Sept 2023 by Benedict Sycamore

Question:

I am having an issue with outgoing emails from Deskpro via an SMTP server. The error I'm seeing includes:

550 5.7.1 Unable to relay

Answer:

You need to configure your email server to work as a relay. Consult the documentation for your email server.

For Microsoft Exchange, this article explains how to configure relaying.

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Author: Ben Henley
Last update: 8 Sept 2023