Google Contacts, the address book built into Gmail, lets you keep track of all your contacts, see when you last interacted with them, and more.
Send approved donor appeals and explain skipped addresses.
Your usable contacts get personalized emails, and you get a clear report of every send, skip, and failure.
Send approved donor mailings and flag duplicate addresses.
Your group mailing goes out from the team mailbox, with duplicate addresses skipped and a reply showing sends and exceptions.
Send approved donor campaigns to eligible contact groups.
Your mail merge uses a saved contact group, sends personalized emails from your mailbox, and reports every send, skip, or failure.