In GymMaster, bulk communication is handled via the reporting system. For any group of members you can generate a report for you can also choose to send an email, SMS or notification to.
Note: smart phone notifications are only available for members using the GymMaster Member App.
Lets say you want to email all of your members, a good report for this would be the Current Members report. Navigate to Report & Till > Standard Reports > Member > Current Members > [Show Report], once the report has loaded click the [Send Email] at the top of the page. This will take you to a selection page where you can exclude certain members or select [Select All]. Finally write out your email or load a template, then click [Send].
If you only want to contact a specific group of your members then all you have to do is filter out the members who should not receive this communication. For more on how to filter your reports, see the article on Filtering your reports