I did the requird SMTP setting but first 1-2 times only I received the forgot password link on mail.After that same error occur again.
Please if anyone knows How to tackle with this problem?
I got the error msg as
Error sending password change confirmation email
<a href="http://docs.moodle.org/31/en/error/moodle/cannotmailconfirm">More information about this error</a>