Last time I was looking for a preferably european mail host for a new project I looked at Proton but they did not seem to have support for transactional mail.

In the end I settled on Zoho, not European , but not US either.

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Belphemur 5 days ago | parent [-]

I'd argue you where looking at the wrong tool for the job.

ProtonMail is meant for human to human communication, not for automated emails.

	▲	PeterStuer 5 days ago \| parent [-]
		Yes, but for simplicity I was looking for a provider that had both mailboxes as well as a transactional mail solution for a SaaS project I am working on.