First, can you use send mail from the FileMenu to send an email to your own email address?
That's a quick test to confirm that your email client application will work without issue with FileMaker.
Then we'd need to know how your database is designed and what kind of email message you want to send. There are two basic methods for sending out an email to multiple recipients:
- If you pull up a found set of records where a field in each record stores a different email address, there's an option in the send mail dialog that allows you to specify: Multiple Emails (one for each record in found set).
- Both the TO and BCC boxes in the Send Mail dialog can use a calculation to pull up a list of recipient emails separated by the correct delimitter to send out a single email to multiple addresses just like you would directly from your email application.
Some links about email and filemaker