List of email addresses

[Jules_Lane]

Hi - just being a bit lazy but here’s an easy one

What is the correct expression syntax for this, which gives an error;

USEREMAIL()=MEMBERS.MYNYDD@GMAIL.COM OR
USEREMAIL()=MEETS.MYNYDD@GMAIL.COM OR
USEREMAIL()=CHAIR.MYNYDD@GMAIL.COM

I am trying to only show a data field if the users email is one of a list of 3.