I would like to second this RFP. I recently received a notification from Google warning me that they are phasing out password authentication, which (in the case of my account) will stop working on May 30. Once that happens, OAuth2 will be the only supported GMail SMTP authentication mechanism. This in turn means sasl-xoauth2 (or equivalent) will become a hard requirement to be able to use GMail SMTP from Postfix, for example.
- Bug#1006888: RFP: sasl-xoauth2 -- XOAUTH2 plugi... Etienne Dechamps
- Bug#1006888: RFP: sasl-xoauth2 -- XOAUTH2 ... Jameson Graef Rollins
- Bug#1006888: RFP: sasl-xoauth2 -- XOAUTH2 ... Daniel Kahn Gillmor
- Processed: Re: Bug#1006888: RFP: sasl-... Debian Bug Tracking System