5 Free Tools to Improve Your Email Deliverability

But here’s the harsh truth. No matter how beneficial email marketing is, and no matter how high its ROI is… if your emails don’t find their way into your target recipients’ inboxes, you’re looking at wasted time and wasted resources.

After all, poor email deliverability leads to lost revenue, missed opportunities, weak engagement, and sometimes even a damaged reputation.

The good news? You don’t need expensive software to start improving your email deliverability. With the right free tools, you can get an idea of your current deliverability status, pinpoint issues affecting it, and implement the proper solutions to optimize your deliverability. 

We’ve collected the top free tools every sender should use to ensure emails reach the inbox, and not the spam folder.

1. Email deliverability test

If you want to improve deliverability, the first step is understanding where your emails are landing today. A free email deliverability test gives you a comprehensive snapshot of your inbox placement and the factors influencing it. 

There are many tools available that can provide an analysis of how likely your emails will land in the inbox based on factors like spam signals, authentication protocols, and presence on blacklists among others.

Warmy’s free email deliverability test is the most comprehensive test of all as it provides essential data points such as:

• Inbox placement. Know the percentage of your emails that land in the Inbox, Spam, and even those that are unreceived 
• Status of your authentication records and whether your SPF, DKIM, and DMARC records are properly configured. These impact how mailbox providers perceive your legitimacy and credibility.
• If your domain or IP is present on any blacklists. Being included in such lists can cause mailbox providers to be wary of you as a sender. They may decide that your emails should be rerouted to the spam folder in order to protect their users. Knowing if you’re listed on any of these lists can help you start the delisting process before any long-term damage to your reputation occurs.
• Provider-specific placement on Gmail, Yahoo, Outlook, and more. Different mailbox providers have different standards and different policies. Thus, they also have various ways of determining inbox placement. Knowing your deliverability across these providers gives you information on whether or not you’re able to reach your target recipients. 

2. Template Checker

Sometimes, deliverability issues aren’t caused by your technical setup. Sometimes, they come from the content in your email. Your choice of words, formatting, and structure all influence spam-filter decisions. 

A template checker evaluates your cold email template for risks such as:

• Spam-triggering keywords or words usually associated with
• Overly sales-heavy language
• Excessive formatting or links
• Lack of personalization efforts
• Low-credibility elements

Spam filters analyze the entire message body (including tone) so using a template checker before sending a campaign is one of the easiest ways to avoid landing into spam. 

Warmy also offers a free template checker which anyone can use—you don’t even need to create an account. As an added bonus, Warmy’s Template Checker has a Google Chrome extension and a Mozilla Firefox extension which enables senders to assess their emails without leaving their email platform.

3. SPF Record Generator

The Sender Policy Framework (SPF) is an authentication protocol that informs mailbox providers that your email is safe and that you’re a trustworthy sender. Because it authenticates your domain, it’s one of the biggest factors that affect email deliverability. Thus, if your SPF record is incorrect or missing, mailbox providers may treat your messages as suspicious and decide to reroute them to spam.

The solution? Warmy has a free SPF Record Generator that generates the much-needed record within seconds, saving senders from the technical complications that may arise. 

4. DMARC Record Generator

The Domain-based Message Authentication, Reporting, and Conformance (DMARC) Record is another critical authentication protocol. Essentially, what it does is it protects your domain from being spoofed and from being used in phishing attacks.

The Domain-based Message Authentication, Reporting, and Conformance (DMARC) Record is a protocol that tells the server what to do with the message if the DKIM and SPF records are incorrect:

• The SPF indicates if a specific server is allowed to send emails from that domain or not. 
• The DKIM verifies that the email wasn’t altered in transit

Now let’s deal with DMARC. Depending on the two conditions above, the DMARC policy states what the mailbox provider should do.

While DMARC is definitely one of the strongest deliverability standards, many senders avoid it because the setup seems complicated. A free DMARC Record Generator (such as the one from Warmy) eliminates that complexity and produces a valid and ready-to-use DMARC policy.

5. Email Signature Builder

When spam filters scan your content for any suspicious signals, they also analyze your email sign offs and email signatures. 

Email sign offs and signatures, though they are at the bottom of an email, are more than a fancy way of ending an email. They add professionalism, leave a lasting impact on the reader, and they also influence deliverability.

Here’s how:

• Clean and professional signatures help maintain consistent formatting across messages
• Well-structured but not overwhelming contact information boosts trust signals
• Overly complex HTML signatures with too many links can trigger spam filters
• Sign offs that are impersonal or repetitive across multiple campaigns can trigger spam filters if they come across as robotic 

A free email signature builder takes away the burden of overthinking how to end an email properly. For example, Warmy’s free Email Signature Builder is basically plug-and-play. You only need to enter your information and it provides you with a few templates. You can then copy and paste this email signature that’s optimized for deliverability.

Leverage these free tools that provide priceless value

Email deliverability is anything but simple and straightforward. It has many layers and individual moving parts which also have to seamlessly work together. It’s a mix of technical configuration, sender reputation, content quality, and engagement.

Thankfully, with the right tools, email senders can build a strong foundation for better inbox placement. Warmy’s suite of free tools prove that you can start your journey to email deliverability success even before investing in advanced deliverability solutions.