When I first started email marketing, I struggled with getting my emails into my subscribers’ inboxes instead of the dreaded spam folder. After some trial and error, I realized that email deliverability isn’t just about sending emails; it’s about making sure they actually reach the inbox.

What is Email Deliverability and Why Does It Matter?

Email deliverability measures how many of your emails land in subscribers’ inboxes instead of their spam folders. If your emails don’t get seen, your marketing efforts are wasted. Deliverability is crucial to ensure your messages reach your audience and don’t get lost in the spam trap.

How is Deliverability Determined?

Mailbox providers (like Gmail, Microsoft, and Yahoo) decide whether your emails belong in the inbox or spam folder based on three questions:

1. Is the message safe?
2. Is it wanted by most subscribers?
3. Is it wanted by this specific subscriber?

If the answer to all these is “yes,” your email goes to the inbox. If any answer is “no,” it goes to spam. To decide this, providers look at your sender reputation, which is based on how subscribers interact with your emails.

Sender Reputation: Your Email’s Credit Score

Mailbox providers create a reputation score for your sending domain, similar to a credit score. The more positive interactions your subscribers have with your emails, the better your reputation. Unfortunately, this score isn’t something you can easily check, and mailbox providers keep their scoring system private.

Subscriber Engagement: The Key to a Positive Reputation

The best way to build a good reputation is through positive engagement. Your subscribers’ actions, whether they open, click, or ignore your emails, affect your sender reputation.

Here’s how to promote positive engagement:

• List Health: Only email subscribers who have permitted you to send them marketing emails. A clean, permission-based list ensures quality over quantity.
• Double Opt-In and Secure Forms: Use a double opt-in or ReCaptcha to prevent bots from joining your list.
• Prune Your List Regularly: Remove inactive or unengaged subscribers. A clean list helps maintain a strong reputation.

Consistency: The Backbone of Your Reputation

Consistency is crucial for your sender reputation. Sudden changes in how you send emails can raise red flags for mailbox providers.

Here are the key factors to keep consistent:

• Sending Domain: Always use a familiar domain. Avoid new domains or domains that haven’t sent emails in a while.
• Volume: Keep your sending volume steady. Avoid huge spikes, such as going from 5,000 to 20,000 subscribers overnight.
• Frequency: Send at least once a month to keep your reputation alive. Don’t overwhelm subscribers by sending too frequently—ask them how often they want to hear from you.

Content: The Final Touch

While content doesn’t play as big a role as it used to, it still affects deliverability, especially if your sender reputation is not yet strong.

Here are some tips to ensure your content doesn’t hurt your reputation:

• Avoid Link Shorteners: Spam filters flag link shorteners. Link directly to your intended website.
• Steer Clear of Spammy Language: Don’t use overly promotional language. Write emails in a conversational tone, not a hard sell.
• Image-to-Text Ratio: Ensure that if images fail to load, your email still delivers a clear message through text.
• Don’t Use Gimmicks: Tricks like misleading subject lines (e.g., “Re: Your Order #2095642”) may boost opens short-term, but they harm your credibility in the long run.
• Encourage Authentic Engagement: Ask subscribers to reply to your emails or share something personal to boost engagement and strengthen your relationship with them.

Summary

To get your emails into the inbox, focus on your subscribers. Give them control over what they receive and how often. Build a healthy, engaged list and create content that keeps them coming back. With consistent practices and genuine engagement, your deliverability will improve, and your emails will land where they belong, right in the inbox.