Why your cold email lands in spam (and how I stop it)

You can write the best cold email in the world. If it lands in the spam folder, nobody reads it. Deliverability is the part most people get wrong, and it’s the first thing I fix.

It starts before you send a single email

The biggest mistake I see is sending from a brand-new domain with no warmup. Mailbox providers treat a cold domain like a stranger knocking on the door at 2am. You need to build trust first.

Here’s the groundwork I lay before any campaign goes live:

• Dedicated sending domains kept separate from your main company domain, so your reputation is never at risk.
• Proper authentication (SPF, DKIM, DMARC) configured correctly, not half-done.
• A real warmup period where inboxes gradually build a healthy sending history.

Volume is a trap

It’s tempting to blast thousands of emails on day one. That’s the fastest way to burn your domain. I ramp volume slowly and watch the signals, then push harder once the inboxes have earned it.

Copy matters too

Spam filters read your words. Links, attachments, spammy phrases, and walls of text all hurt you. I keep early emails short, personal, and link-light until reputation is established.

Deliverability isn’t one setting you flip on. It’s a dozen small things done right, every day.

If your open rates are quietly terrible, this is almost always why. Want me to take a look at your setup?