No, autoconfig is a way for mail servers to tell clients the config they should use (ports, ssl/starttls, username, name/domain of the server, authentication for imap, pop and smtp). There are multiple standards by different mail client devs, eg. Thunderbird, K-9 Mail and some other check for autoconfig./mail/config-v1.1.xml and outlook etc. check for a "autodiscover" SRV record, or use autodiscover. or check /autodiscover/autodiscover.xml. As you see, it's a mess. Well, only Outlooks "standard" is, as usually you wouldn't care because M$ Winshit ~~Crasher~~ Server does that automatically, so they don't care about good docs. Thunderbirds autoconfig is pretty well made and documented tho.