Cold email works but only if your emails actually land in the inbox. If you’re constantly hitting spam folders, your domain reputation tanks, and your emails become invisible.

Here’s how to avoid that and ensure your emails are seen:

1. Get Your Technical Setup Right

Email providers look for authentication records to verify whether an email is legit. Without these, your emails are more likely to be flagged.

✔️ SPF, DKIM & DMARC: These must be properly configured on your domain. (Premium Inboxes handles this for you.)

✔️ Use a Dedicated Domain: Never send cold emails from your primary domain. (Again, Premium Inboxes provides this!)

✔️ Warm Up Your Inbox: Slowly increase sending volume over time to build a good reputation.


2. Keep Your Sending Behavior Safe

Even if your setup is perfect, your sending habits can still trigger spam filters.

🚫 Never send too many emails too fast – Start small (10-20/day) and gradually increase.

🚫 Don’t send the same email to thousands of people – Slight variations help avoid spam triggers.

🚫 Always personalize – Generic, mass emails are a red flag.


3. Avoid Spammy Words & Formatting

Spam filters flag emails that look overly promotional or aggressive.

❌ Avoid words like: