Avoid Spam Filters – Coaching Newsletter Tips

Ya gotta avoid the spam filters. It’s shockingly easy for your emails to get missed. Not because your readers don’t care, but because inboxes now have gatekeepers everywhere: Gmail tabs, Outlook’s Focused inbox, Apple Mail filtering, plus whatever sorting rules your subscribers have created over the years.

A good coaching newsletter can quietly land in a “not right now” bucket and never get opened. If you want your precious trust-building articles to reach people, avoid spam filters, and stay visible, it comes down to a few simple signals.

Here are 10 moves to help your coaching newsletters avoid spam filters and stay prominent.

1. Authenticate your sending domain.

These rules were created to stop fake emails pretending to be you. Big inbox companies adopted them over time (Google and Yahoo in 2024). If you ignore the rules, scammers can spoof you (act like you), and Gmail may hide or block your newsletters.

In nerdy speak SPF approves senders, DKIM verifies messages, DMARC enforces rules to prevent spoofing. More nerdy details here.

• SPF (Google): https://support.google.com/a/answer/33786
• DKIM (Google): https://knowledge.workspace.google.com/business-continuity/security-and-monitoring/set-up-dkim
• DMARC (Google): https://support.google.com/a/answer/2466580

It’s best to comply, not hard to do, but frightening to non-techies. 😉

2. Use a real address on your domain.

Make sure you’re something from real email account that’s from your domain (from your website).

If your email looks like it’s from your website domain (like johnsmithcoaching.com) but the actual “from” address is something like email hidden; JavaScript is required, that mismatch is a red flag to filters and to humans.

3. Keep the welcome email simple.

I like keeping it to one goal, one topic, one action like a link.

Welcome emails that look like campaigns get sorted like campaigns, which makes it harder for future coaching newsletters to stay in front of people.

4. Avoid heavy templates.

Plain text or light formatting beats a glossy “newsletter layout” when you’re trying to avoid sorting into promotional buckets.

HTML templates, especially fancy, multi-image, and multi-column formatting trigger marketing signals and extra tracking.

5. Reduce links like your life depends on it.

Multiple buttons, PDFs, socials, and “read more” links scream marketing.

Sure, if you’ve got a big coaching empire with lots of courses, guest articles and razzmatazz, you’ll need a team to run your biz. But for the rest of the solo-op simpler businesses, go for one action like:

• getting a free session
• clicking to a video
• or replying to a survey question

6. Make PDF downloads feel less “promo.”

If you do a PDF download, it’s risky to attach it as a file or linking to the file.

It’s less risky to link to a page, with a PDF link or button on it. This helps your newsletter avoid spam filters that react to attachments and direct-file links.

7. Ask for a reply in the first email.

Replies are a strong signal across platforms that this is a real conversation, not just marketing. It helps your future email newsletters land where people actually see them.

8. Tell people exactly what to do to “promote” you in their inbox.

I like mentioning this in the welcome email …

• Gmail-specific: “If this landed in Promotions, drag it to Primary.”
• Outlook-specific: “If this went to Other, move it to Focused.”

Keep it casual single sentece.

9. Keep subject lines human.

Avoid hype, caps, and “marketing language.”

Short and clear usually performs best everywhere, and it helps you avoid spam filters that flag clickbait patterns.

10. Be very, very, very useful.

People will hunt down your emails if they are valuable. They will mark it as “safe” or whitelist your address, hinting that it’s important.

My trick => Always make you’re writing to the struggles of your ideal clients.

This is all a game of signals.

The tech setup signals you’re legitimate. The writing and formatting signals you’re human. The engagement signals you’re wanted.

Test like a normal person. Send your email to a few addresses you own (Gmail, Outlook, iCloud). See where it lands. Then adjust one variable at a time.

If your coaching newsletters look real and are genuinely useful, you’ll avoid spam filters more often and stay in the inbox where subscribers actually notice you.

What have you done to avoid spam filters? Post below.