SendObject to DL in MS Outlook

[Yukon]

I created a Macro with a single action - SendObject

The "To" field is limited in how many email addresses that can be
entered.

I created a distribution list in MS Outlook.

When I type the DL name in the "To" field, it is not recognized in the
email editor after running the macro.

Can I reference the Distribution List in the "To" field somehow where
it is properly recognized?

Thanks.