Is it possible to register multiple members under the same email address?

Youth on Course suggests adding a "+" followed by the member's name to the email address being used.

For some email providers, members can add a “+” symbol and verbiage to the end of their email address, and it will still reach their inbox. 

For example, if the email address is nancy@gmail.com and the member's names are Sam and Pat, they can use nancy+sam@gmail.com and nancy+pat@gmail.com.

These email addresses will reach their single inbox, but the Youth on Course, SM Apply, and GHIN systems will treat them as separate email addresses.  This would allow members to more effortlessly manage communications between multiple members.