can any one suggest why am i getting max mail limit reached.

This is weird.

Email limit

Why did I encounter an email limit?
'We had to place a limit on first-contact emails because
of spammers. Basically, this cuts down the number of
first-contact emails that one can send within a
two-to-three-day period (we can't divulge anymore
information about this limit). However, a member
affected by this limit will still be able to send an
unlimited number of emails to those with whom he or
she has already had some back-and-forth. It should
be noted that MinglePlus members are exempt.'
http://mingle2.com/welcome/faq_message

There is also another message limitation..if the emails exceed
a certain number and within a timeframe. This ones cures in minutes.