imap-log

imap-log is a variable defined in `imap.el'.
Its value is

nil

Documentation:
If non-nil, an imap session trace is placed in `imap-log-buffer'.
Note that username, passwords and other privacy sensitive
information (such as e-mail) may be stored in the buffer.
It is not written to disk, however. Do not enable this
variable unless you are comfortable with that.

See also `imap-debug'.

You can customize this variable.