The generic deliverability advice you find online is written for e-commerce senders shipping product updates to a hundred thousand customers. Coaches and consultants send different mail, to different audiences, with different economics. This is the version that matches how you actually work.
The advice you'll read on most deliverability blogs assumes you're a big brand sending hundreds of thousands of emails to customers who bought a specific product. Their deliverability problems look like: shared IP reputation, unsubscribe compliance across regions, transactional-vs-marketing separation, high-volume warmup schedules.
Your situation is almost the inverse. Small list (500 to 20,000 usually), high engagement expected, personal voice, one or two campaigns a week, mostly on Kit or Beehiiv or MailerLite, list mostly built from opt-ins on your site or lead magnets or podcast appearances.
Because of that shape, the deliverability signals that matter most for you are the ones the classifier weights heaviest at low volume: engagement quality, content shape, and reply rate. Sender reputation still matters, but you don't have the raw volume for it to be your primary problem — unless you've done something obviously wrong.
You go quiet for two months, then send five emails in ten days for a launch. Your list gets a shock, complaints spike, reputation drops. The launch converts but afterwards your open rates never fully recover. This is the most common single mistake. Fix: send consistently between launches, even short quick notes. Regular rhythm signals wanted-mail more than volume does.
Header photo of you smiling. Big pull quote. Row of social icons. "You're invited to work with me" CTA button. This template is instantly recognisable, both to your reader and to Gmail. Instantly filed as Promotions. Fix: strip the template. Send a short letter. Your voice does the work.
You ran a webinar or challenge or lead magnet six months ago. Got 3,000 signups. Sent them your welcome sequence, then went into normal broadcasts. Half of them never opened after the initial signup, and now they're dead weight dragging every send down. Fix: prune ruthlessly. Anyone from that campaign who hasn't opened in 90 days is not a subscriber anymore — they're an engagement anchor.
You write good long-form emails that never mention anything to buy, because you don't want to be "salesy." Then twice a year you send launch emails that are pure sell. Gmail sees the pattern shift and treats the launches as anomalous — often exactly the moment you most need placement. Fix: mention what you offer in most emails, casually. Consistent commercial intent reads as normal.
You send some emails from yourname@yourbusiness.com through Kit. Some from hello@yourbusiness.com through Google Workspace. Some transactional through your course platform. All from the same domain. Each service has its own authentication setup, and they don't all align cleanly. Gmail sees inconsistent signals and can't build a stable reputation for you. Fix: consolidate sending. Or, if you need multiple services, put each on a subdomain (news.yourbusiness.com, tx.yourbusiness.com) with its own separately-warmed reputation.
You need three DNS records set up correctly on the domain you send from:
p=none with a rua address set so you receive daily reports. That gives you visibility on where your mail is coming from without any risk. Move to p=quarantine after two weeks of clean reports.Total setup time: about ninety minutes if you're comfortable with DNS. Two hours with your ESP's support if you're not. This is one of the highest-ROI hours you'll spend on your business — it's the difference between fighting deliverability forever and having it be a settled thing.
Deliverability at small-list scale is largely a function of rhythm. Not volume — rhythm. Gmail wants to see consistent, engagement-earning sends from your domain. Once it has that read on you, campaigns land in Primary almost as a default.
The pattern that works, honed across dozens of clients:
Coaches especially struggle with the "one to two campaigns per week" cadence because it feels like a lot to write. In practice, once the auth stack is solid and the template is stripped, sustained short emails are much easier — and much better received — than occasional long ones.
This entire operating system — auth stack, list hygiene, editorial voice, sending rhythm, reply-inviting closes — is what Unbury builds for clients on a retainer. Two campaigns a week, written in your voice, format optimised for Primary placement, sent from your ESP, tracked and adjusted based on what actually lands.
The tradeoff is straightforward: you focus on your business, I handle the writing and deliverability layer. Most clients report open rates roughly tripling within four to six weeks, plus a compounding effect on replies and revenue as more of your list starts actually seeing your emails.
If you want a read on where you're starting from, the Inbox Scorecard is a free ten-question deliverability score. For a real read on your last campaign, the free audit returns a written report within five business days.
Book a call. Thirty minutes, no pitch — I'll look at your last few campaigns, tell you honestly what's going wrong, and if it's a fit we'll talk about the retainer.