Question about Sendmail

I have 2 questions.
1, is sendmail available.
2, if yes, is there a limit ( like 10 mails per day max )

You can only use the php mail() function
and you can send max. 100 Mail per Day, but if you need more you can write a support Ticket

perhaps that i would need to write a 100+ e-mails in one day.
but not each day, perhaps going to use it as a montly newsletter or something and for activation purposes.

then write a support ticket and request more.

Thanks ^^.