Why Your Emails Are Going to Spam (Even When Everything Looks Fine)

If your email performance has felt off lately, you’re likely not imagining it.

And let me guess: 

• Open rates look fine.

• Campaigns are going out.

• Nothing is technically broken.

Yet… something feels off. So what changed? The inbox did.

Deliverability has changed. 

Over the past few years, Gmail, Yahoo, and all the other “key players” in the inbox world started enforcing the rules.  In fact, these things were always important to email success, they just weren’t AS important because inbox providers weren’t always strictly enforcing them.

Therefore, deliverability issues aren’t as obvious anymore. A few years ago, you used to know you were having a deliverability issue because you’d see: 

• massive drops in open rates

• obvious spam placement

• clear technical issues 

Now?

You can be doing everything “right” on the surface and still lose visibility. Because deliverability today isn’t just about whether your email gets sent.It’s about whether inbox providers trust you enough to show it to your subscribers. You used to be able to skate by without having the perfect authentication, email infrastructure, or cleaning your list because email providers weren’t as strict. 

The biggest mistake brands are making

Most companies are still trying to fix performance inside the email by focusing on subject lines, design, and copy. But the real issue is happening before the email even gets seen. If your email doesn’t land in the inbox consistently, your subject line doesn’t matter, design is irrelevant, and copy won’t even get read. You’re likely optimizing something your audience never sees.

So, let’s dive into what’s changed in deliverability & how to fix it.

What has actually changed

AI is changing and accelerating everything

Everyone's talking about using AI to write emails faster. But what nobody talks about is that inbox providers are using it too. AI processes engagement faster, filters emails more aggressively, and decides much quicker who gets inbox placement and who doesn’t. Which means the grace period you used to have when engagement dipped? 

Gone. So, if performance dips, you feel it almost immediately. But this is only one piece of the puzzle.

On top of that, AI email summaries now mean a subscriber can read a two-line preview, feel like they got the gist, and never open or click at all. Which sounds harmless until you remember that deliverability runs entirely on engagement signals. Good content, zero measurable interaction. Inbox providers don't know the difference. So now you can have “good content” and still see performance drop, because people aren’t interacting with it in a way inbox providers can measure. At the end of the day, AI isn’t hurting your email performance. It’s just speeding everything up and exposing where your strategy is weak.

Inbox providers got stricter (and kept it a secret)

As aforementioned, Google and Yahoo rolled out new and stricter requirements for inbox deliverability.

This is actually for a good reason. Google, Yahoo, etc. are trying to protect our inboxes from spam and those abusing the system.

You need to check these 3 things immediately: 

• SPF, DKIM, and DMARC are set up correctly

• Spam complaint rate is under 0.1% (check Google Postmaster Tools — yes, right now)

• Unsubscribe is one click, obvious, and not buried in 6pt font at the bottom

None of this is new, but enforcement is and it’s much less forgiving.

If your setup is messy, your list quality is questionable, or your engagement is inconsistent

Brands with messy infrastructure, those obtaining lists in unethical ways, and ignoring spam complaints are going to get filtered faster than ever before.

Speaking of spam… Spam complaint threshold changed

The spam complaint threshold has also changed to a hard ceiling of 0.3%. Depending on your send volume, that could be one complaint.  So be sure you are practicing good email sending habits beyond your subject lines and “good” content. Spam complaints are going to happen. It’s a part of sending email. However, we want to try to limit them as much as possible by practicing good email etiquette. This means, no buying lists, no using AI to scrape the internet for email addresses, and no adding people to your list who don’t want to be there.

But in the long run, this is good news for those abusing the system or those of us who wind up with copious amounts of spam in our inboxes. Brands with messy infrastructure, those obtaining lists in unethical ways, and ignoring spam complaints are going to get filtered faster than ever before.

So what should you focus on instead?

If you want to improve deliverability today, shift your focus to:

1. Infrastructure

As mentioned, but it’s so important it’s worth repeating, make sure your domain technical setup is solid:

• SPF, DKIM, and DMARC are set up correctly (a stricter than policy = none for DMARC is highly recommended)

• Spam complaint rate is under 0.1% (check Google Postmaster Tools — yes, right now)

• Unsubscribe is one click, obvious, and not buried in 6pt font at the bottom

This is your deliverability foundation.

2. List quality

Where your subscribers come from matters more than how many you have. You want to avoid:

• Purchasing an email list

• AI scraping

• Adding people who don’t specifically opt in to your list

• Blindly sending without segmenting 

• Suppressing subscribers for not opening and not basing it on other factors such as behavior (more on this below)

3. Engagement signals

Stop relying on open and click rates. Instead, look at:

• browsing behavior

• conversions

• conversations

And then use these additional signals to create robust segments so you are sending the right messages to the right customers.

4. Sending behavior

Email isn’t a “set it and forget it” channel anymore. You need to:

• monitor engagement and browsing behavior

• adjust frequency accordingly

• remove or re-engage inactive subscribers (beyond not just opening)

Deliverability is ongoing maintenance. Not just one time set it and forget it.

Need help figuring out what’s going on?

If your email performance has dropped and you’re not sure why, it’s usually not one just thing and may require an expert audit. 

The brands performing right now aren't lucky, they're paying attention and adjusting. 

Because at the end of the day, the hacks won't save you. And they definitely won't shortcut you to success.

If you're not sure what needs to change, let's figure it out.

👉 Book a strategy call and we’ll break down what’s happening under the hood