Cloudflare Email not working


I’m using the Email functionality of Cloudflare which at the moment is in beta phase.
It works good except for one thing: I’d like to forward my emails to a email address, but this doesn’t work. The following error appears: 451 4.3.0 No available upstream.

Someone has an idea what does this mean and what can I do to solve it?

Thanks in advance


Could you please join our discord Cloudflare Developers? If you can share your domain I can help debug.

1 Like

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.