I’m currently working on migrating all my old mail from various different IMAP accounts to my new Google Apps account. I discovered a tool called imapsync which looks pretty impressive, and in the process of doing a dry run, I saw the following logged:
Success login on [imap.gmail.com] with user [REDACTED] auth [LOGIN] From capability : XYZZY QUOTA NAMESPACE IDLE UNSELECT CHILDREN IMAP4REV1 XLIST
XYZZY? Really?
The Google IMAP service advertises a strange CAPABILITY called XYZZY when you issue the CAPABILITY command. If the command XYZZY is given, the server responds “OK Nothing happens.”
This is potentially the best thing of all time. Other than bread and butter pudding.
