Problem with bulk mail on new post

Sir,

My server bounces most of the automatic notification mails that EasyBlog sends when I post a new article back to my account, saying the server allows only 20 mails from a domain per hour. I contacted the hosting provider, and they say they cannot increase the limit. Is there a way out? For e.g., can I change the setting somewhere in EasyBlog so that only 20 mails will be sent in an hour? Or any other solution?

Thanks in advance,
Shahul.