HubSpot es el sistema que usamos para enviar correos electrónicos. Si bien Gmail sigue siendo un sistema que usamos para envíos internos. correos electrónicos de tipo logístico y de planificación. HubSpot es para una comunicación más amplia para audiencias más grandes.
The ability for a contact to manage their email preferences is linked at the bottom of every email sent from HubSpot
A user can only belong to 1 chapter at a time.
If a user makes a donation to your chapter it does not mean they have chosen to be on your chapter email lists, they choose to give money to your chapter. However they can update their chapter preferences at any time.
Check out the blog "Email Best Practices and Why We Need Them".