micke/valid_email2: ActiveModel validation for email. Including MX lookup and disposable email blacklist

08-Nov-2024 36
Validate emails with the help of the mail gem instead of some clunky regexp. Aditionally validate that the domain has a MX record. Optionally validate against a static list of disposable email services. Optionally validate that the email is not subaddressed (RFC5233). .
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