THE COMPLETE GUIDE
Email marketing in the United States, explained plainly
Everything an established business needs to send legal, effective email: the rules, the list-building, the campaigns that work, and how to read your results honestly. No jargon, no guesswork.
CAN-SPAM explained in plain English
Every address checked before you send
Month to month, no contracts
WHERE TO START
Eight chapters, one afternoon
The basics: what email marketing actually is
The rules: CAN-SPAM, consent, and the FTC
Building your list the right way
Campaigns that work, and when to send them
Landing in the inbox: deliverability explained
Measuring what matters: real opens vs. automated
Your checklist: steps to take this week
Common questions, answered straight
START HERE
What email marketing actually is
Email marketing is sending messages to people who already know your business, on purpose, to bring them back. Not cold outreach to strangers — the version that works is built on a list of real customers, past clients, and people who asked to hear from you. That list is the entire asset. Build it right and every email after costs you almost nothing extra to send.
For an established business, the math is different than for a brand-new one. You already have hundreds or thousands of email addresses sitting in old invoices, booking systems, and point-of-sale records. Most businesses never email those people again after the first transaction. Email marketing is the habit of reminding them you exist, with something worth opening.
A campaign is one email sent to your list at one time: a seasonal promotion, a new service announcement, a reminder it's time to book again. A sequence is a short series that sends automatically after a trigger, like a welcome sequence after someone signs up. Most businesses run both — campaigns for timely news, sequences for anything that happens the same way every time.
None of it works without three things in place: a list of real people, a legal way to email them, and a way to tell if it's working. The rest of this guide covers each one, starting with the law, because getting that right protects you no matter what you send next.
KNOW THE RULES
The law behind every email you send
Commercial email in the United States is governed by the CAN-SPAM Act, enforced by the Federal Trade Commission (FTC). It applies to any email whose main purpose is advertising or promoting a product or service, including emails to your own past customers. The rules are more practical than people expect, and every one of them is achievable for a small team.
Consent: CAN-SPAM doesn't require opt-in consent before you send, unlike some other countries' laws, but it does require honesty about who's sending and an easy way to stop. In practice, the businesses that do best email only people who've bought from them, asked a question, or signed up for something, because those are the people who open, and a list of strangers burns your sender reputation fast.
Identification: every commercial email must use a from name and subject line that aren't misleading, and must include your business's valid physical postal address. If it isn't obvious from context that the message is an advertisement, it has to say so.
Unsubscribe: every email needs a clear, working way to opt out, and once someone does, you have to honor it within 10 business days. You can't charge a fee, require a login, or ask for anything beyond an email address to process it.
This is general information, not legal advice. If you have a specific compliance question, talk to a lawyer. What we can tell you plainly: every one of these requirements is built into every email and every sending domain on the platform, so you don't have to remember them campaign by campaign.
GROW IT RIGHT
Building a list that actually opens
The fastest list to build is the one you already have. Export every email address from your booking system, your invoicing software, and your point of sale. Those are people who've already paid you, the warmest list you'll ever own, and one most businesses never touch after the first transaction.
After that, grow it with permission. A sign-up form on your website, at checkout, or on a landing page tells a new visitor exactly what they're getting and lets them choose it. That single choice is the difference between a list that opens and a list that doesn't: people who asked to hear from you behave completely differently than people who didn't.
Keep the list clean as it grows. Old addresses go dead, people change jobs, and typos happen at the point of entry. A list with dead addresses and typos doesn't just waste sends, it tells inbox providers you aren't paying attention, which hurts every email after it. Every address on the platform gets checked at the mailbox before it ever enters a campaign.
WHAT TO SEND
Campaigns that work, and when
Not every email needs to be a sale. The businesses that get opened month after month mix three kinds of messages: news (what's new at your business), value (something useful with no ask attached), and offers (a specific reason to book or buy now). An inbox that only ever asks for something trains people to stop opening.
Timing matters as much as content. A seasonal service business sends ahead of its busy season, not during it. A wellness center or med spa does well with a monthly send tied to a specific treatment or result. A contractor or home services business does best reminding people right before the season their service matters most — gutters before fall, HVAC before summer.
Whatever you send, send it in more than one version. A subject line, an opening line, or an offer you're sure will win often doesn't. Testing a few designed variants against your whole list, not a small sample, tells you which one people actually responded to, so you can write the next one with real information instead of a guess.
Welcome sequence — the moment someone signs up
Seasonal promotion — ahead of your busy season
Re-engagement — for contacts who've gone quiet
Announcement — a new service, location, or hours
Review request — right after a good result
Win-back offer — for past customers who haven't returned
LAND IN THE INBOX
Why some email never arrives
Inbox providers like Gmail, Microsoft, and Yahoo decide where your email lands based on your sending history, not your intentions. A clean list and a good offer aren't enough on their own if the technical signals behind your email look wrong. Deliverability is the sum of those signals.
Authentication comes first: SPF, DKIM, and DMARC are DNS records that prove an email claiming to be from your business actually came from you. Without them, providers treat your mail with more suspicion by default. The platform registers your sending domain, sets up all three records, and hosts the domain, so there's nothing for you to configure.
Pace comes second. A domain that sends a trickle of email one week and a flood the next looks suspicious, even with good content. Every new sending domain earns its volume gradually, and each inbox provider gets its own sending rate, adjusted from how that provider is responding right now, so your mail keeps arriving as your list grows.
List hygiene comes third. Sending to dead addresses and spam traps is the fastest way to damage a domain's reputation. Every address on the platform is checked at the mailbox before each send, not just spell-checked, and across the network 99.7% of mail gets delivered.
READ YOUR RESULTS
What your numbers are really telling you
Not every "open" is a person. Apple and other providers pre-fetch images automatically to protect privacy, which can register as an open before anyone's read a word. A report that counts those the same as a real person opening your email overstates what actually happened.
Honest reporting separates the two: opens that arrive the way automated software opens are counted as automated, and the rest as human, in their own column. That's the number worth watching, alongside clicks, bounces, complaints, and unsubscribes, which tell you how the email actually landed.
Use the results to follow up, not just to file away. Save the people who clicked into a segment and send them something related. Save the people who opened without clicking and try a different offer. Resend to the people who didn't open at all with a new subject line — often the subject line, not the content, was the problem.
THIS WEEK
Your ten-step launch checklist
Export your customer list from booking, invoicing, or POS software
Add a sign-up form to your website or a simple landing page
Write your from name, subject line, and footer address honestly
Set up a sending domain that matches your brand
Check every address on your list before the first send
Write your first campaign from a one-line brief
Launch with at least two subject line variants
Add a clear, working unsubscribe link
Review the campaign once before it goes out
Check human opens, clicks, and unsubscribes after it sends
QUESTIONS
What people ask us
Do I need permission before emailing someone in the US?
CAN-SPAM doesn't require opt-in consent before you send, but it does require honesty about who's sending and an easy way to opt out. In practice, emailing only people who've bought from you or asked to hear from you gets far better results and keeps your list healthy.
What has to be in every commercial email?
A from name and subject line that aren't misleading, your business's valid physical postal address, and a clear, working way to unsubscribe. If the email isn't obviously an ad, it needs to say so.
How fast do I have to honor an unsubscribe request?
Within 10 business days of the request, with no fee, no login, and no information beyond an email address required to process it.
Who enforces email marketing law in the US?
The Federal Trade Commission enforces the CAN-SPAM Act. This guide is general information, not legal advice; talk to a lawyer about a specific situation.
Why do my emails go to spam even though people want them?
Usually it's the technical setup, not the content: missing authentication records, sending from a domain with no history, or a list with dead addresses dragging down your reputation. Fixing the domain and the list fixes most spam problems.
How big does my list need to be to start?
Any size. Most established businesses already have a working list in their booking system or invoicing software. Start there, then grow it with a sign-up form.
Can I do this myself, or do I need an agency?
Both are available here. Build and send your own campaigns with the drag-and-drop editor and AI writing, or hand it to our team and we plan, write, design, and send your campaigns for you, month to month.
Am I locked into a contract?
No. Every plan, self-serve or done-for-you, is month to month.
What does done-for-you actually include?
Our team plans, writes, designs, and sends your campaigns for you, starting from $399 a month. You approve the plan and we handle the rest.
Send your first campaign the right way
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