OpenBSD 6.6 amd64 OpenSMTPD 6.6.0 Dovecot 2.3.9.3 (9f41b88fa) login_duo 1.11.2
I'm working with an OpenSMTPD/Dovecot installation that will support users authenticating over the internet and I'm curious if any form of multi-factor authentication is possible for IMAP (and optionally, SMTP). Currently SMTP auth and Dovecot both authenticate users over TLS using their system user passwords. I have also set up Duo MFA for sshd using the login_duo package so admins can additionally authenticate with a push notification to phone. Is there any sort of supported way of wiring up login_duo with OpenSMTPD and Dovecot, or using bsdauth in some way to enforce a second auth factor? -- Darren Spruell [email protected]
