(goto-char elmo-pop3-read-point))
(setq match-end (point))
(setq response-string
- (buffer-substring elmo-pop3-read-point (- match-end 2)))
+ (buffer-substring elmo-pop3-read-point
+ (max (- match-end 2) elmo-pop3-read-point)))
(goto-char elmo-pop3-read-point)
(if (looking-at "\\+.*$")
(progn