+@node Support for IMAP Extensions
+@subsection Support for IMAP Extensions
+
+@cindex Gmail
+@cindex X-GM-LABELS
+@cindex IMAP labels
+
+If you're using Google's Gmail, you may want to see your Gmail labels
+when reading your mail. Gnus can give you this information if you ask
+for @samp{X-GM-LABELS} in the variable @code{gnus-extra-headers}. For
+example:
+
+@example
+(setq gnus-extra-headers
+ '(To Newsgroups X-GM-LABELS))
+@end example
+
+This will result in Gnus storing your labels in message header
+structures for later use. The content is always a parenthesized
+(possible empty) list.
+
+
+