On 7 January 2026, Gmail flipped the switch on a big update¹. It’s not a beta. It’s not a slow rollout. It’s live now, and it changes how email lands in people’s inboxes.
Rather than showing messages in date order, Gmail now filters emails based on what it deems important using generative AI. Translation: Gmail’s AI decides if you’re crucial or background noise. If you thought your subscribers were seeing what you sent, think again.
Reports are already saying that a ton of messages that technically reach the inbox are now being deprioritised by Gmail’s AI. That means “delivered” doesn’t equal “seen.”².
What Gmail’s AI is judging
This isn’t about spam versus not spam anymore. Gmail’s AI is watching:
- Reputation with real people: who engages with you and how often they do it
- Actual engagement: a click matters more than an open, a reply matters most
- What your email actually says: phrasing, structure, tone
- Formatting signals: big banners and sales-y layouts now get read as “promotional”
The system learns fast. It remembers if your emails are boring, generic or genuinely interesting.
The silver lining for real marketers
Here’s the great part: this hurts spray-and-pray senders and helps the marketers who give a damn about their subscribers.
If your emails are just noise, expect Gmail’s AI to bury them. If your emails are useful, fun, interesting or helpful, the AI will pick up on that because real people do³.
What Works Now
If your email is relevant and people engage with it, send daily. Twice daily. The AI doesn’t care about volume; it cares about signals of interest³.
But if your audience barely reacts, sending more just trains Gmail to hide you faster.
It comes down to value, not volume:
High value = high frequency works.
Low value = any frequency hurts.
Segmentation isn’t optional
One list, one message for everyone? That’s dead.
At minimum, you should have:
- A list of people who open, click and reply regularly
- A list of people who haven’t engaged in a month
Different content, different send rhythm, different everything.
Superfans can handle frequent emails. Casual readers might want less. Inactive folks need re-engagement or a polite exit.
One-size-fits-all is dead.
Personalisation actually has to mean something
“Hi [First Name]” isn’t personal anymore. Gmail’s AI can sniff out templated stuff faster than any subscriber can.
Real personalisation is behaviour-based. It’s tailored to what someone has done before, clicks, purchases, engagement, not ESP’s template library.
Write like a human. Not like a brand consultant.
Gmail’s natural language processing can spot promotional language.
Real voice, actual personality, little quirks that show a real person wrote it? That works. That’s not just branding. That’s strategy.
Reputation matters long term
A couple of weak sends won’t just tank your metrics for a day. AI doesn’t forget. Reputation compounds.
Warm up new domains properly. Never buy lists (seriously, why is that still a thing?). Watch complaints. Sunset dead subscribers. Monitor engagement like your job depends on it, because it does.
The big idea
Gmail’s AI inbox isn’t killing email marketing.
It’s rewarding better email marketing.
Email is shifting from interruption to relationship. If your strategy is blasting generic messages at everyone, you’ve got to evolve or you’ll get buried. But if you genuinely deliver content people want to read, you’re not just surviving. You’re earning attention.
The inbox isn’t given anymore.
It’s earned.
Start acting like it.
