Hello, My university provided me with an outlook email which authenticates through OAuth2 tokens to access their IMAP/SMTP servers. Can OpenSMTPD relay mail to their SMTP server by authenticating with the OAuth2 token?
I am using mutt_oauth2.py[1] to obtain the OAuth2 refresh and access tokens. I download my mail from the IMAP server with fdm using xoauth2 as the authentication method. I currently use msmtp with xoauth2 as the authentication method to deliver mail to the SMTP server. I would like to use OpenSMTPD to authenticate with the OAuth2 token so that I can relay mail to the SMTP server. The smtpd.conf manual documents the relay method with: auth <table> where a file specified by table(5) stores the credentials in the form: label email-address:password Since the password from come from an access token, the field would need to be updated. Additionally, the authentication method xoauth2 would need to be passed to the smtp server. The possibility of relaying mail to SMTP servers using OAuth2 authentication methods looks promising. I would be thankful for any help. -- fr3 [1] https://gitlab.com/muttmua/mutt/-/blob/master/contrib/mutt_oauth2.py
