I think this happened in the last 24 hours, no announcement that I've seen, but try:<p>USER: openssl s_client -connect imap.gmail.com:993<p>SERVER: * OK Gimap ready for requests from 98.220.234.148 3if1337572iwn.10<p>USER: C01 Capability<p>SERVER: * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA XLIST CHILDREN XYZZY SASL-IR AUTH=XOAUTH<p>That SASL-IR and AUTH=XOAUTH is new.<p>See http://sites.google.com/site/oauthgoog/Home/oauthimap for more on using it (still listed as experimental).
What's the point? Isn't OAuth all about 3-legged authentication scenarios? Why would it be useful for IMAP, particularly when the provider, Google in this case, already has your credentials.