Group member not receiving email

Group member not receiving email

Hi, I have one group ' ask@startayurveda.com' Mail sent to this group from my Gmail account are not received by the members in the group. However mail sent from ' ankit@psca.co.in' are received by the members.
Most website users have Gmail account, So will we not get any mail from them when sent from their Gmail account?
Please help
Regards Ankit