I don't use Outlook, but couldn't you use the SMTP mail option instead, just in case?
I suspect, there are not that many Outlook users on the Mac, unfortunately.
This kb lists supported email clients: List of supported email clients for Sending Mail | FileMaker
Unfortunately, Outlook on Mac is not supported at all. According to kb, it did not get any better in 15.
If you don't need attachments, you can use "Open URL" with mailto: protocol.
fmpdude mentioned SMTP in "Send Mail" - nice and easy option.
Outlook supports AppleScript, you can create mail by running AppleScript from FileMaker.
Thank you for the reply, I will try the SMTP and see if that will work...
Have a great New Years,
Sure, just post back with screenshots if it doesn't work.
I use SMTP by default since FMP / Mac doesn't work with my email program either.
I actually prefer SMTP anyway. FMP's STMP works great.