5 Reasons Your Emails Go to Spam (That Have Nothing to Do With Your Subject Line)
Or: Why the email gremlins hate you and what to do about it
You're hitting Send. Your open rates are meh. Your subscribers swear they never got your email. And now you're starting to wonder if email marketing is even worth it anymore.
It’s possible you’ve got some work to do on segmenting your audience, writing better copy, or simply getting more consistent with email. But it’s also possible your emails aren’t making it to inboxes at all.
Before you blame Gmail or "the algorithm" or Mercury in Gatorade, I need to tell you something a little uncomfortable: It's probably something you're doing.
The good news is it’s (mostly) fixable. And the better news is that once you fix it, your emails will actually reach the people who want to read them.
Email Gremlins Are Real (And They're Always Watching)
Although we think of Gmail, Outlook, Apple Mail as these kind of passive delivery systems, they’re actually more like sophisticated gatekeepers, deciding whether your email deserves the inbox or the spam folder (or worse, the void where emails just... disappear).
They're watching:
How often you send
Who engages with your emails
Whether your technical setup looks legit
If your emails look like spam they've seen before
How easy it is to unsubscribe
Every email you send is basically standing in front of 2005 Simon Cowell, hoping for a shot at Hollywood your inbox. And all it takes is a little head shake and an “it’s a no from me, dog” and no one ever sees the email you spent ages writing.
So what are you doing that might be triggering their spam senses? Let's break it down.
Reason #1: Nobody Remembers Who You Are
You send an email once every four months when you remember you have a list. Or you just launched and you're sending from a brand new domain nobody recognizes.
Why this hurts deliverability:
Subscribers don't recognize your name, so they ignore or delete your emails
Inbox providers see low engagement and assume your emails aren't valuable
People think you're spam because they genuinely may not remember signing up
What to do about it:
Send consistently. Not constantly — more like weekly, biweekly, monthly. Pick a cadence that works for you and do your best to stick to it. Showing up regularly builds familiarity and trust.
Use a recognizable sender name. "Lib from Lib Aubuchon" beats "noreply@libaubuchon.com" every time.
Remind people why they signed up. Especially in your first few emails or if you've been quiet for a while. A little "Hey! You signed up for [thing] back in [when]" goes a long way. A super easy workaround is to have a blurb in the footer (near your “unsubscribe” link) that reminds people how you ended up in their inbox.
Consistency builds trust — and trust gets you into inboxes. If you’re ready to start making changes today/this very minute, here’s how to plan a month of email newsletters in 30 minutes.
Reason #2: You're Treating Your Email List Like a Hoarder's Closet
Let’s say you have 5,000 people on your list. Only 200 of them have opened an email in the last six months. But you keep emailing all 5,000 anyway because "bigger list = better, right?"
Well, not exactly.
Why this kills deliverability:
Inbox providers see that most recipients ignore your emails and flag you as low-value
Dead email addresses (spam traps, abandoned accounts) hurt your sender reputation
You're tanking your own engagement rates by emailing people who don't care
What to do:
Clean your list regularly. Remove people who haven't engaged in 6-12 months. I know: it feels brutal, but it’s for the best.
Stop resending to non-openers. If someone didn't open it the first time, sending it again just signals to inbox providers that people don't want your emails. It’s fine to a “resend to unopens” from time to time. But if someone is habitually not opening
Focus on your engaged subscribers. They're the ones who actually like hearing from you. They’re often people who’ve already worked with you and that’s invaluable. Quality over quantity, always.
A smaller, engaged list will always outperform a massive, unresponsive one. The goal is to have a list that buys, not a bunch of email addresses.
A Quick PSA: Don't Email People Who Didn't Opt In
I know you didn't technically "buy" a list. But maybe you:
Added your podcast guests without asking?
Emailed everyone who attended your webinar (even if they didn't explicitly opt in)?
Collected emails from your website visitors and added them manually?
If people don't explicitly opt in, they didn't sign up for your emails. And when they don't recognize you, they mark you as spam — which tanks your deliverability for everyone on your list, including the people who actually want to hear from you.
I get that the intention is good. But this one backfires. Hard.
Reason #3: Your Email Setup Looks Sketchy
Inbox providers need proof that you're legit. If your authentication is missing or broken, you look like someone trying to impersonate a real sender.
Why this hurts deliverability:
Your SPF, DKIM, and DMARC records are missing or misconfigured
You suddenly send 10,000 emails after months of silence (big, giant, waving red flag!)
You switched email platforms or domains without warming up your new setup
What to do:
Set up SPF, DKIM, and DMARC properly. Yes, it's technical. Yes, it matters. Your email service provider should have instructions for how to do this. But I can tell you from experience that unless you really enjoy mucking around with settings, get someone else to do this — preferably someone who knows what they’re doing.
Warm up new domains and IPs. If you're switching platforms or starting fresh, don't blast your entire list on day one. Start small and gradually increase your sending volume over a few weeks.
Send consistently instead of in big bursts. Going from zero emails to five emails in a week looks suspicious to inbox providers.
Think of this like building credit. You need to prove you're trustworthy before inbox providers give you the benefit of the doubt.
Reason #4: Your Emails Look Like Spam (Even Though They're Not)
You're not trying to look like spam. But if your emails look like every other spam email inbox providers have seen, they get treated like spam. Walks like a duck and all that.
Why this hurts deliverability:
Your emails are overloaded with images, links, and tracking pixels
You're using generic email templates that scream "mass marketing blast"
Your subject lines sound like clickbait or like they were written by AI that's never had a conversation with a human
Your copy is stiff, robotic, or overly salesy
What to do:
Keep it simple. Plain text or lightly formatted emails perform better than image-heavy designs.
Write like a human. Not like a template. Not like ChatGPT's first (or even second) draft. Like you talking to a friend.
Test your emails before sending. Send a test to yourself or a trusted business pal. Does it look spammy? Does it sound like you? Would you open it if it showed up in your inbox?
The best emails feel personal, even when they're sent to hundreds or thousands of people.
Reason #5: You Make It Too Hard to Unsubscribe
I get it — you don't want people to leave. But when you hide your unsubscribe link, make it require a login, or guilt people for leaving ("You'll miss out on exclusive updates!"), you're not keeping subscribers. You're just making them hit the spam button instead.
And you’re probably making people MAD.
Why this hurts deliverability:
Spam complaints are one of the fastest ways to destroy your sender reputation
Inbox providers prioritize user experience. If people can't easily unsubscribe, they'll mark you as spam
You end up keeping people on your list who actively don't want to be there (which tanks engagement)
What to do:
Make your unsubscribe link easy to find. Footer. One click. This is so easy.
Don't require logins or multiple steps. The harder you make it, the more likely they'll just mark you as spam. And if your email service provider makes people type in what email address they used to sign up? I promise you people are hoping you stub your toe every single morning of your life.
Let people opt out of marketing emails but stay subscribed to transactional ones. They might not want your newsletter, but they still need order confirmations.
An unsubscribe is infinitely better than a spam complaint. Let people go gracefully.
Before You Hit Send, Ask Yourself:
Are you sending emails people expect and recognize?
Are you keeping your list engaged and removing inactive subscribers?
Is your authentication and sending pattern working for you or against you?
Do your emails look trustworthy or like something a spammer would send?
Can people easily unsubscribe instead of marking you as spam?
Do you actually need some strategic support before you send another email? That’s what the Inbox Intensive is for!
The Unsexy Truth About Email Deliverability
Nobody gets excited about SPF records and list hygiene. It's not nearly as fun as writing clever subject lines or designing pretty templates.
But if your emails aren't reaching inboxes, none of that other stuff matters.
You can write the most brilliant, engaging email in the world, but if it goes to spam, it might as well not exist.
So yeah, deliverability isn't sexy. But it's also the difference between your emails working and your emails disappearing into the void.
The good news? Most of this is fixable with a little effort and consistency.
Fix your setup. Clean your list. Send regularly. Write like a human. Make it easy to unsubscribe. Stop giving the email gremlins reasons to filter you out. Your subscribers signed up because they wanted to hear from you so make sure they actually get the chance.
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