We have created new email account and using it to send receive messages. Currently, their email limit is set to 200 messages sending per hour, or 2000 per day. That is the maximum amount allowed to send. This is to prevent spamming activity or misuse of mail server resources.
They also provides webmail client which allows user to check mail online, compose and send message, and some advanced apps will allow events management as well. They are offering not one but three apps including the all new Open-Xchange webmail. Besides this, they are offering SquirrelMail and ATMail as well.