Jeffrey Walton writes:
On Sat, Apr 26, 2025 at 7:57 AM Sam Varshavchik <mr...@courier-mta.com> wrote:> > A brief search finds several implementations of OTP on top of SASL. There's > your MFA for SMTP, IMAP, and POP3. You're welcome.From RFC 9051, Section 6.2.2. AUTHENTICATE Command, <https://datatracker.ietf.org/doc/rfc9051/>: Note that the SASL framework allows for the creation of SASL mechanisms that support 2-factor authentication (2FA); however, none are fully ready to be recommended by this document.
RFC 9051 is IMAP, but the same applies to POP and SMTP.
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