Answer routine questions, draft replies, route requests. Every one is ready to run, and you can adjust it in plain language.
Prepare the owner's introduction replies with relevant contact notes.
Your introduction replies are ready to review in the original thread, and a private chat message points you to the draft.
Draft correspondence replies for a colleague's approval.
Get a reply draft in the same chat thread, with unclear facts called out so you can review the wording before you answer the sender.