[TYPO3] Multiple dynamic recipients in tmailform

[Tim B]

Is it possible to send an email to multiple recipients per line in the
dynamic select box of the tmailform?

example from dynamic dropdown:
Email address 1; bob at email.com; joe at email.com
Email address 2; leafssuck at 123.com; canucksrule at 123.com

I can get it to work fine with one email per selection and i suspect it
should work with 2 email addresses, just can't seem to get the syntax
correct.

Thank you
Regards