Every guide, by topic

Send your first campaign

The whole path in order — contacts, sending address, credit, design, send.

A tour of Inbox Penny

What lives where, and which page you actually want.

Invite your team

Add colleagues, and what each role can do.

Set up your brand profile

Tell Penny who you are, once, and every draft improves.

Moving from another platform

Bring your contacts, your designs and — importantly — your opt-outs.

Import contacts from a CSV

Bring a list over, and understand what the importer changes.

Contact statuses explained

Five statuses, and why only one of them ever receives email.

Lists vs segments

One you fill yourself; the other fills itself from rules.

Build a segment

Rules that pick an audience, re-answered every time you use it.

Custom fields and merge tags

Store anything about a contact, then print it in an email.

Who we never mail

Every automatic exclusion, and why each one protects you.

Export your contacts

Download a list or segment as CSV — and edit it back in.

Create a signup form

A hosted page people can fill in — the only way they add themselves.

Double opt-in, and why it's on by default

One extra click that makes every other protection work.

Embed a form on your website

Two lines of HTML, and it resizes itself.

Style a form to match your site

Colours, font and a light or dark base — with one setting to watch.

Consent records

What we keep when someone signs up, and why it's the exact wording.

The email designer

Rows, columns and blocks — and why email layout has rules.

Templates

Fifty designs to start from, plus your own.

Migrate an email from another platform

Give Penny an existing newsletter; get an editable design back.

Personalize with merge tags

Use someone's name — without sending “Hi ,” to a tenth of your list.

Schedule a campaign

Send later — and what's re-checked when it fires.

The media library

Your images, hosted permanently so old emails don't break.

A/B test a subject line

Try two subjects on a slice, then send the winner to the rest.

Folders, duplicating and archiving

Keeping a long campaign list usable.

The unsubscribe page your recipients see

Branded as you, and deliberately easy to complete.

View in browser

A web copy of every email, added automatically.

Send a welcome email when someone joins a list

One email, sent once, when someone joins — no flow to build.

Build your first automation

A trigger, a wait and an email — the shape every flow is made of.

Triggers: what can start a flow

The ten ways someone enters an automation — and why bulk actions don't.

Waiting, and waiting for an action

Hold for an hour, hold until Tuesday morning, or hold until they click.

Send people different ways with if/else

One question, two paths — and what happens to the branch you forget to wire.

Goals, and when someone leaves early

Stop emailing someone the moment they do the thing you wanted.

A/B test two paths inside a flow

Divide traffic two ways — permanently, or until one path proves better.

Let people come round again

Whether the same person can go through a flow more than once.

Read the numbers on each step

What entered, here now, left and the completion rate actually count.

Why an automation paused itself

Four reasons a flow stops on its own, and what each one needs.

Verify your own sending domain

Four DNS records, and your mail is provably yours.

Use a free sending address on ours

No domain, no DNS — a signed address in one click.

DKIM, SPF and DMARC in plain English

Three checks that decide whether your mail is believed.

Gmail and Yahoo's bulk sender rules

What they demand since 2024, and which parts are yours to keep.

Daily sending limits and how they rise

Why a new account starts small, and what lifts the ceiling.

Why a campaign was held for review

What a hold means, what happens next, and why we're vague about it.

The unsubscribe link and postal address the law requires

Both are added automatically — and hiding them backfires.

Bounces and spam complaints — what they cost you

The two numbers mailbox providers judge you on.

List hygiene and warming up

A smaller, engaged list beats a big stale one — measurably.

Read a campaign report

What each number means, and which ones to trust.

Why open rates are unreliable

Apple opens your email before the recipient does.

Insights: heatmap, subject lines, best time to send

Patterns across your campaigns, not one campaign at a time.

Audience: devices, providers and countries

Who your readers are, worked out from clicks.

Benchmarks

How you compare with other senders here — anonymously.

Compare campaigns

Several campaigns side by side, and how to draw a fair conclusion.

Exports and the weekly report email

CSV of your campaigns, and a summary in your inbox each week.

How pricing works

Pay for the email you send. No plan, no monthly fee, no expiry.

Your balance, statement and refunds

Every movement of credit, and when it comes back.

What happens if you run out mid-campaign

It can't happen — the balance is checked before anything sends.

What Penny can do

Five places the AI helps, all included at no extra charge.

What we send to the AI

Your copy and your brand — never your contacts.

Draft an email from a brief

Describe it in a sentence; refine until it's right.

Rewrite and refine copy

Fix one paragraph without touching the rest of the email.

The pre-send review

The embarrassing mistakes, caught before thousands of people see them.

Create an API key

Programmatic access to contacts and lists.

Contacts and lists API reference

Every endpoint, with the two behaviours that surprise people.

Rate limits

How many requests a minute, and how to back off properly.

Errors and status codes

What each response means, and whether retrying will help.