Protonmail is silently discarding emails. Someone sent me an email with some important documents and it never arrived at protonmail. I moved my domain from protonmail to google workspace and the email arrived in a few hours, the server retried until my domain resoved on google MXes.
It happened before, first time I thought that it was just a server glitch. But now I cannot use the protonmail service anymore, silently discarding emails is not a good thing. That particular email was not spam and google does not marked it as spam, so I don't know why protonmail did not accept it.
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