Email marketing is one of the most effective ways to reach and engage your audience. However, even the best-crafted emails won’t do much good if they never reach your recipients’ inboxes. Improving email deliverability is a critical factor for the success of any email marketing campaign, and as someone with over 15 years of experience in digital marketing, I can tell you that it’s a common challenge many businesses face.

In this blog, I’ll walk you through email marketing best practices for increasing email deliverability. From cleaning your email list to using the right email service provider, I’ll share practical tips to help ensure your emails are landing where they need to be—right in your recipients’ inboxes.

1. Clean Your Email List Regularly

One of the most important aspects of email marketing is maintaining a clean, up-to-date email list. If your list is full of invalid, unengaged, or inactive email addresses, your emails are more likely to be marked as spam or end up in the promotions tab. Regularly cleaning your email list ensures that you’re only sending emails to those who are interested in your content.

Here’s how to clean your email list:

Remove inactive subscribers: If a subscriber hasn’t engaged with your emails in a while (e.g., 6-12 months), it’s time to remove them from your list. This can improve your open rates and help avoid high bounce rates.
Validate email addresses: Use an email validation service to catch any invalid or malformed email addresses.
Use segmentation: Group your subscribers based on their engagement and activity. By targeting active subscribers with tailored content, you improve the chances of them opening your emails.

Maintaining a clean email list helps improve your sender reputation and, in turn, increases the likelihood of your emails being delivered successfully.

2. Use a Reliable Email Service Provider (ESP)

Choosing the right email marketing platform is essential for improving deliverability. A reliable Email Service Provider (ESP) offers features that help monitor and improve your email deliverability, such as tools for tracking bounce rates, spam complaints, and engagement metrics. Some popular ESPs, like Mailchimp, ActiveCampaign, or ConvertKit, provide excellent deliverability features that can help you identify and resolve any issues before they impact your campaigns.

Here are some things to look for in an ESP:

High sender reputation: The ESP should have a good reputation with email service providers (ESPs) and ISPs (Internet Service Providers) to ensure your emails aren’t marked as spam.
Authentication protocols: Make sure the ESP supports SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance) to authenticate your emails and protect your domain from being spoofed.
List management tools: Choose an ESP with tools to help you clean and segment your list, ensuring you send emails only to engaged subscribers.

A good ESP will provide the necessary tools and guidance to ensure your emails get delivered effectively and securely.

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3. Authenticate Your Domain

Email authentication is essential for ensuring your emails aren’t flagged as spam. Email providers like Gmail, Yahoo, and Outlook use authentication protocols to verify that the email is coming from a legitimate source.

There are three main protocols to set up:

SPF: This protocol verifies that your email was sent from an authorised server. It helps prevent unauthorised senders from impersonating your domain.
DKIM: DKIM uses encryption to sign your emails, which proves that the email content hasn’t been altered in transit. It adds a layer of security and trust to your emails.
DMARC: DMARC tells receiving email servers what to do with emails that fail SPF or DKIM checks. It’s an added layer of protection to help ensure your emails pass authentication checks.

Implementing these protocols not only helps with deliverability but also ensures your email marketing campaigns are secure and trustworthy, which is crucial for building credibility with your audience.

4. Optimise Your Subject Line and Content

Your subject line and content can have a significant impact on whether your emails make it to the inbox or get filtered into spam folders. Many email filters look for specific characteristics, like spammy words, excessive punctuation, or all-caps subject lines.

Here’s how to optimise your email marketing content:

Avoid spammy language: Words like “free,” “buy now,” or “limited time offer” can trigger spam filters. Instead, focus on clear, concise subject lines that speak directly to your audience.
Personalise your subject lines: Including the recipient’s name or a reference to their past activity can help increase engagement and open rates.
Limit the use of links: Too many links in your email can trigger spam filters. Keep the focus on quality content with one or two clear calls-to-action (CTAs).
Make sure your content is mobile-friendly: A large percentage of emails are opened on mobile devices, so ensure your email content is responsive and easily readable on all screen sizes.

By optimising your email content, you’ll reduce the likelihood of your emails being marked as spam and improve the overall user experience.

5. Monitor Engagement and Adjust Your Strategy

Engagement metrics such as open rates, click-through rates (CTR), and bounce rates play a critical role in email marketing deliverability. If your emails have low engagement, ISPs may begin to classify your emails as spam.

Here’s what you can do:

Track performance: Monitor your open rates, CTRs, and bounce rates to identify potential issues. If you notice that your open rates are dropping, it might be time to re-evaluate your subject lines or content.
A/B test your campaigns: Run A/B tests on subject lines, sending times, content, and CTAs to see what resonates best with your audience.
Re-engage inactive subscribers: If subscribers haven’t opened your emails in a while, try sending them re-engagement campaigns to win them back. If they still don’t engage, consider removing them from your list to maintain a healthy sender reputation.

By continually monitoring and adjusting your email strategy, you can ensure that your emails remain engaging, relevant, and more likely to land in your recipients’ inboxes.

6. Send Emails Consistently and on Time

Consistency is key when it comes to email marketing. Sending emails too frequently or too infrequently can hurt your deliverability. If you send too many emails in a short period of time, it can annoy recipients and increase the likelihood of unsubscribes or spam complaints. On the other hand, if you don’t send emails often enough, your subscribers may forget about your brand, leading to lower engagement rates.

To maintain a healthy sending frequency, ensure that your emails are being sent consistently, with the right timing. Tools like Mailchimp and ActiveCampaign allow you to schedule emails at optimal times based on your subscribers’ past behaviour.

Improving email deliverability is a multi-faceted process, but it’s absolutely essential to the success of your email marketing campaigns. By cleaning your list regularly, using a reliable ESP, authenticating your domain, optimising your content, and monitoring your results, you’ll significantly improve the chances of your emails landing in your recipients’ inboxes.

Staying on top of email deliverability best practices will ensure your email marketing efforts are effective and help you build a strong, engaged audience. If you need help with improving your email campaigns or optimising your email deliverability, feel free to contact us to discuss how we can assist you.