Fastmail Email Workflows with AI

TL;DR​

• The Fastmail MCP server connects your agent to search, threads, send, and masked addresses after you connect your Fastmail account in MCPBundles.
• Fastmail is a paid email service that does not scan messages for ads or sell inbox data to advertisers — operators who live in email want triage and thread catch-ups, not another tab beside the compose window.
• Built for founders, assistants, and client services leads who need a morning brief, a contract-thread recap, and one-click follow-ups from chat.

Your inbox opens at eight and twelve threads already look urgent. Three are the same Riverside Dental contract negotiation spread across forwards, one vendor trial needs a masked address before checkout, and the founder wants a one-paragraph summary of what Acme Dental decided yesterday — without you rereading forty messages.

That's a normal Fastmail morning for operators who chose paid email for focus and privacy. The Fastmail integration on MCPBundles is for assembling the brief in one ask.

Morning inbox brief​

Unread mail from the last twenty-four hours is rarely equal. A useful brief groups what needs a reply today, what can wait, and which threads mention deadlines or dollar amounts — sorted by urgency, not arrival time alone.

"Search my Fastmail inbox for unread messages from the last twenty-four hours and summarize what needs a reply today."

When you're covering for someone out sick, narrow by sender: "List unread threads from Harbor Legal contacts this week and flag anything mentioning court dates or signatures."

Thread catch-up without scroll fatigue​

Long negotiations live in forwards, side threads, and one-line replies buried mid-chain. The agent can pull a full thread by subject or participant and return decisions, open questions, and who owes the next move.

"Pull the full Fastmail thread about the Riverside Dental contract and give me a bullet summary of what was decided and who owes a reply."

Joining mid-project: "Summarize the Acme Dental onboarding thread — kickoff date, blockers, and the last message from their side."

Send follow-ups grounded in context​

Draft-and-send workflows work best when the reply references what the thread already committed to — not a generic template pasted on top.

"Draft and send a Fastmail reply to the latest message in the Acme Dental onboarding thread — confirm next steps and ask for their preferred kickoff date."

When tone matters, stage it: "Draft a follow-up to Riverside Dental that acknowledges their redlines but doesn't concede on payment terms — show me the draft before sending."

Masked addresses for trials and vendors​

Handing the same address to every signup invites spam and makes breach cleanup painful. Fastmail's masked addresses let you spin up a unique address per vendor and retire it if the list goes bad.

"Create a new Fastmail masked email address for a Harbor Legal software trial and tell me the address to paste at checkout."

For a short campaign: "List masked addresses I created in the last ninety days and note which ones still receive mail."

Connect and try it​

Connect Fastmail on MCPBundles, add your account connection once, and ask from Claude, Cursor, or whatever agent you already use. Example prompts and setup live on the product page.

"Summarize unread Fastmail from the last twenty-four hours — what needs a reply today?"

"Pull one long thread and list decisions plus who owes the next message."