הגדר דואר נכנס בהפצה ישירה לאתרים המארחים את עצמם עם Mail-Receiver

[md-misko]

@jericson

When creating the API key, I selected “All Users” and “Global” scope. I don’t know if a more restricted key would work.

You really should use a least privilege api key, these settings definitely work:

User Level: All users
Scope: Granular
email—receive emails