AI Email Drafting · Built for Real Inboxes

It doesn't write like AI.
It writes like you.

PostmasterAI drafts your emails — trained on your voice, your clients, your phrases — and deposits them straight into Outlook. You review. You send.

Get the Prompt Pack — $97
Claude + Microsoft Graph Deposits to Outlook directly Knowledge base learns your voice

You're writing the same email. Again.

The average professional spends 45 minutes a day writing emails they've already written before. The tone shifts, the phrasing slips, and the drafts pile up in a folder you'll never send. Consistency is impossible when everything starts from scratch.

45
min/day on email
3x
faster response rate with quick replies
0
workflow changes required

Won't it still sound like AI?

"Won't it still sound like AI?"

Most AI email tools sound like AI because they are AI — a generic model writing into a void with no context, no history, and no understanding of who you are. PostmasterAI works differently because of the Knowledge Base.

The KB is where your voice lives. It holds your tone profiles by recipient type, the phrases you actually use, how formal you are with each client, your sign-off library, and the words you'd never write. It's not a template — it's a profile.

When you feed it your real context — how you talk to Marcus versus how you talk to a cold lead — it stops writing like AI and starts writing like you. The first draft might need tuning. By the third week, it's dialed in.

"My wife tried it. Said it sounded like AI. So we sat down and fed the knowledge base — her phrases, her sign-off, her client context, the way she talks. She read the next draft and said 'okay, that's actually me.'"

— Travis Moore, Builder of PostmasterAI

It starts smart. It gets smarter.

The KB is what makes it yours.

Sounds Like You
Voice & Tone Layer
  • Tone profiles by recipient type
  • Phrase bank — words and expressions you actually use
  • Signature and sign-off library, context-matched
  • Forbidden phrases — things you'd never write
  • Formality scale — applied automatically
Knows Your World
Context Layer
  • Client context cards — who they are, what the relationship is
  • Running thread history
  • Project and deal context injected per draft
  • New contacts auto-generate a stub card
  • Context editable at any time
Gets Smarter
Learning Layer
  • Approved drafts reinforce tone weighting
  • Edits folded back into the KB
  • Draft quality feedback loop
  • KB exportable — survives rebuilds
  • Full audit trail of what the KB has learned
Zero Friction
Workflow Layer
  • Draft deposited into Outlook via Microsoft Graph
  • One-line input
  • Draft arrives ready to review, not rewrite
  • Built on Claude
Claude API Microsoft Graph API Outlook Knowledge Base JSON FastAPI

Thirty seconds from thought to draft.

01
You type one line

"Follow up with Marcus about the proposal timeline."

02
The KB builds the context

Tone profile, client card, thread context, and your preferred sign-off are assembled automatically from the Knowledge Base.

03
Claude drafts it

Claude generates the email in your voice, with your context, matched to your formality level for this specific recipient.

04
It appears in your Outlook

The draft is deposited directly into your Outlook drafts folder via Microsoft Graph. Open, review, send.

Everything I used to build this.

The full architecture — without the credentials.

Full Claude prompt stack — system prompt, KB injection pattern, draft generation chain
Knowledge base schema — JSON template ready to populate
Microsoft Graph API integration guide — the pattern, not the credentials
Claude Code build prompt — drop it in and build in one session
Loom walkthrough of the full architecture and KB design decisions
KB population guide — how to fill it so it sounds right on the first draft

Build it or have it built.

DIY
Prompt Pack
$97

One-time. Instant access. Build it in a Claude Code session.

  • Full prompt stack
  • KB schema
  • Graph API pattern
  • Claude Code build prompt
  • Loom walkthrough
  • KB population guide
Get the Prompt Pack

Instant download. No subscription.

If email is eating your day, this is for you.

For 1–10 person teams sending 20+ emails a week who need their outbox moving without compromising their voice or their client relationships.

🏠
Real Estate

Client follow-ups, offer updates, and intro sequences — without starting from scratch every time.

🏦
Mortgage

Rate updates, pre-approval notes, and status emails drafted in your tone, ready to review.

🛡️
Insurance

Policy check-ins, renewal reminders, and referral asks — consistent, personal, and fast.

⚖️
Boutique Law

Client updates and follow-through emails that sound like you, not a form letter.

📊
Consultants

Proposal follow-ups, project comms, and check-ins drafted and ready in your Outlook drafts folder.

Your inbox. Your voice. Automated.

Get the Prompt Pack — $97