Re: mail-abbrev-end-of-buffer apparently does nothing

[Richard Stallman]

    Apparently mail-abbrev-end-of-buffer does nothing special: it jumps to
    the end of buffer but does not expand the abbreviation.

The code tries to expand:

    (defun mail-abbrev-end-of-buffer (&optional arg)
      "Expand any mail abbrev, then move point to end of buffer.
    Leave mark at previous position.
    With arg N, put point N/10 of the way from the true end.

    Don't use this command in Lisp programs!
    \(goto-char (point-max)) is faster and avoids clobbering the mark."
      (interactive "P")
      (if (looking-at "[ \t]*\n") (expand-abbrev))

Why doesn't it work for you?