MailBook
MailBook — Automated email outreach to your own list.
Follow-up sequences prepped and tracked for you — you send from your own mail app. No cold email, no bought lists.

Your book at work

Add a person

A word that groups people — like “past buyers” or “spring leads”. You can email one tag at a time later.

Paste in a list

One person per line — Name, email or just the email on its own. People already on your list are skipped, never added twice.

Your list is empty. Add the first person who asked to hear from you — a customer, a past buyer, a warm lead.

Write one email for your list

Write it once. Use {first_name} anywhere and MailBook swaps in each person's first name, so the same email reads personal to everyone who gets it.

MailBook prepares and tracks your email — it doesn't send anything itself. For each person you get the finished, personalized email to copy into your own mail app and send from there. Then tap Mark sent and your log stays honest.

Build a follow-up sequence

A short run of emails that go out one at a time, a few days apart — written by you, in your voice. Up to 4 steps. MailBook watches the calendar and tells you whose next step is due; you copy, send from your mail app, and mark it sent.

Your sequences

No sequences yet. Build your first one above — even two steps (“checking in” now, “one last try” in a week) beats forgetting to follow up at all.

Running now

Nobody is in a sequence right now. Start one for someone from a sequence above.

Due today

Follow-up steps whose day has come, worked out from the day each person started and the gaps you set. Copy the email, send it from your own mail app, then mark it sent — that person moves on to their next step.

Nothing due today. When a follow-up step comes due, it lands here.

About MailBook

MailBook is automated email outreach — for people who asked to hear from you — your customers, your past buyers, your warm leads. If they didn't ask, they don't belong here.

That's the whole rule, and it's why it works: email lands better — and lands in the inbox instead of the spam folder — when it goes to people who know your name. MailBook has no way to buy a list, scrape addresses, or blast strangers, on purpose.

How it works: keep your list here, write an email once with {first_name} where their name goes, and MailBook makes a finished, personal copy for each person. You paste it into your own mail app and send it from your own address — the address your customers already know. Sequences are follow-up runs of up to 4 emails; MailBook tracks the days and shows you what's due.

Where your list lives: on this device, in this browser. Nothing about your list is uploaded anywhere. An optional SalesOS account keeps your work secure — the tool works fully without one.

MailBook is part of SalesOS, tools for salespeople in any industry.