Staying out of the spam folder: consent, unsubscribes and the basic rules

You can write a great email and still have nobody read it, because it landed in spam. That's frustrating. It's also mostly preventable.

This lesson covers the habits that keep you out of the spam folder: getting real consent, making unsubscribing easy, following the basic US anti-spam rules, and setting up a few technical things your email platform will walk you through. By the end, you'll know what to do and what never to do.

One note before we start. The legal parts here are general information, not legal advice. Laws change, and other countries have their own rules, some stricter than the US. For the official word, go to ftc.gov or talk to a professional.

The short version

• Only email people who clearly asked to hear from you, and make leaving just as easy as joining.
• Follow the basic CAN-SPAM rules: honest headers and subject lines, a postal address, and a working unsubscribe you honor.
• Set up the sender settings your email platform recommends, and send consistently to people who actually want your mail.

How email ends up in spam

Email providers like Gmail, Yahoo and Outlook decide where each message goes. They look at a lot of signals, and they don't publish the full recipe.

What we do know, in plain terms:

• Complaints hurt. When people click "Report spam," providers notice. Enough of those and more of your mail goes to spam for everyone.
• Engagement helps. When people open, reply, or move your email to their inbox, that's a good sign.
• Bad addresses hurt. Sending to lots of addresses that don't exist looks like you got your list somewhere shady.
• Identity matters. Providers want proof that you are who you say you are. That's where the technical settings come in.

So staying out of spam mostly comes down to one idea.

Send email people asked for, from a sender they recognize, and let them leave easily.

Step 1: Get real consent

Consent means the person clearly agreed to get your emails. Not "they bought something once." Not "they're in my phone." They signed up, knowing what they were signing up for.

Here's what good consent looks like:

1. A clear signup form. It says what they'll get and how often. "A free checklist, plus one email a week about home projects."
2. No pre-checked boxes. If you have a checkbox for your list on another form, leave it unchecked. Let them choose.
3. Double opt-in, if you can. That's when people get an email asking them to confirm before they're added. It keeps out typos and fake addresses.

What not to do

• Don't buy lists. Ever.
• Don't add people from your personal contacts, a work directory, or business cards.
• Don't copy email addresses from websites or social media.
• Don't move people from one business's list to a different one without asking.

These are the fastest ways to get spam complaints, get your account shut down by your email platform, and lose trust before you've said a word.

Step 2: Make unsubscribing easy

This sounds backwards. You worked hard to get subscribers, and now you're helping them leave.

But people who want out will leave one way or another. If unsubscribing is hard, they'll hit "Report spam" instead. That hurts you with every reader on your list.

So:

• Put the unsubscribe link where people can find it. Usually at the bottom. Don't hide it in tiny gray text.
• Make it one simple step. Click, done. Don't make them log in or explain themselves.
• Honor it promptly. Good platforms do this automatically. Don't re-add people later.
• Don't take it personally. People leave for all kinds of reasons. Inbox cleanup, changed interests, life.

Step 3: Know the CAN-SPAM basics

CAN-SPAM is the main US law for commercial email. "Commercial" means emails that advertise or promote a product or service. The Federal Trade Commission (FTC) enforces it. Here are the basics, in general terms:

1. Don't use false or misleading header info. The "From," "To" and "Reply-To" should accurately show who sent the email.
2. Don't use deceptive subject lines. The subject has to match what's inside.
3. Say it's an ad, if it is. Be clear when an email is promotional.
4. Include a valid postal address. A real address where you can get mail. Some people use a PO box or a mailbox service. Check the FTC site for what counts.
5. Tell people how to opt out. Give a clear, easy way to unsubscribe.
6. Honor opt-outs promptly. Don't charge a fee or ask for more than an email address to unsubscribe. Don't sell or share the addresses of people who opted out.
7. You're responsible even if someone else sends for you. Hiring help doesn't hand off the legal duty.

The FTC has a plain-language guide for businesses on ftc.gov. Read it once. It's not long, and it's the real source.

Step 4: Set up your sender settings

Email providers want proof that your emails really come from you. Your platform will have a section for this, often called "domain authentication" or "sender authentication."

A domain is your website address, like yourname.com. Authentication is a set of settings that tells providers, "Yes, this platform is allowed to send email for my domain." You may see three names:

• SPF, which lists who's allowed to send for your domain.
• DKIM, which adds a digital signature to your emails so providers can tell they weren't tampered with.
• DMARC, which tells providers what to do if an email fails those checks.

You don't need to understand how these work. Your email platform gives you the settings, and you paste them into the place where you manage your domain. Look for their step-by-step help article. If you get stuck, their support team can usually walk you through it.

Use an address on your own domain

Sending from a free address like a Gmail account through an email platform can cause delivery problems. If you can, use an address on your own domain, like hello@yourname.com.

Step 5: Keep good sending habits

The technical stuff gets you in the door. Your habits keep you there.

• Send on a steady schedule. Long silences followed by a burst of emails can look suspicious, and readers forget who you are.
• Clean your list now and then. If someone hasn't opened anything in a long time, send a short "Still want these?" email. Remove the ones who don't respond.
• Keep the same "From" name. Readers should recognize you every time.
• Write like a person. Plain words, honest subject lines, no all-caps shouting.

Do this next

• Check your signup form: does it say exactly what people get and how often?
• Turn on double opt-in in your email platform if it's available.
• Send yourself a test email and confirm the unsubscribe link works in one click.
• Add a valid postal address to your email settings.
• Find your platform's domain authentication guide and follow it.
• Read the FTC's CAN-SPAM guide for businesses on ftc.gov.

Ask first, be who you say you are, and hold the door open on the way out. That covers most of it.