(421): 4.3.0 Upstream error even though everything is passing 🥲

I'm getting this error even though everything is passing and the link is useless 😭 Unknown error: transient error (421): 4.3.0 Upstream error, please check https://developers.cloudflare.com/email-routing/postmaster for possible reasons why. LfJLYFMzyUy9
Cloudflare Docs
Postmaster | Cloudflare Email Routing docs
Reference page with postmaster information for professionals, as well as a known limitations section.
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4 Replies
nullptr
nullptrOP•4mo ago
@Leo why is it erroring?
nullptr
nullptrOP•4mo ago
No description
nullptr
nullptrOP•4mo ago
same thing here
nullptr
nullptrOP•4mo ago
this is what i'm getting on the target domain @Leo
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