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 handoff messages with files and record each send result.
See every send result beside the recipient's name after you mark a handoff note Ready in your shared folder.
Send approved customer updates by name and track failed sends.
Your usable contacts get personalized emails, and you get a clear report of every send, skip, and failure.
Send approved customer updates and flag incomplete contact details.
Your group mailing goes out from the team mailbox, with duplicate addresses skipped and a reply showing sends and exceptions.