Signed emails for standard templates

a customer was asking us if we could sign our password reset and other standard emails with a certificate as otherwise their email filter tends to mark them as spam. Is their a way we could do that or does anybody have an idea how to otherwise solve the issue?
We use AWS SES as an email provider have DKIM enabled and a very good reputation in the reputation dashboard.

Thanks for your help.

There’s no way to do that in Auth0 today, as far as I know. You could potentially implement it via your email provider if they support it. Sendgrid does not support this. I don’t think the others do either (signing is still not very common).

If nothing else you could build your own SMTP service that does the signing for you. In theory!

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