Cloudflare Email not working

Website, Application, Performance DNS & Network
1

Hi,

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 @t-online.de 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

2

Hi,

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

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