How to improve email deliverability (9 Tips that Work)

TABLE OF CONTENTS

Share this article

In making a success of their brand, eCommerce retailers should know that email marketing is a crucial element for remaining top-of-mind with their customers.

The reason is simple: Email marketing makes money.

In fact, campaigns that utilize email marketing strategies guarantee an average of $36 ROI for every $1 spent!

Maybe you’ve seen the success of this yourself.

But did you know this is a figure many online retailers don’t see? This is because they often overlook the essential importance of email deliverability.

email deliverability

Image Credit: Business2Community

Email deliverability is determined by your ability to have emails reach the inbox of your customers. 

Ideally, emails should reach their destination without being flagged as spam or junk items.

On average, your email deliverability rate should be around 95%, with a bounce rate of no higher than 3%.

Not seeing these figures?

Luckily, our KAMG experts have a few actionable tips on how to improve email deliverability. 

Interested to learn more? Read on.

Why is Email Deliverability Important?

With its consistent return on investment, email marketing is a non-negotiable business strategy. 

Therefore, you need to ensure emails actually show up in front of your customers. 

But there are a couple more reasons why to have high email deliverability rates. 

It Means You Are Engaging Your Audience

Email marketing offers you a glimpse from the perspective of your customers, and this is not something to be taken lightly.

From this, you should learn that your audience won’t engage with content that they don’t find meaningful. 

From their point of view, if your emails don’t reflect relevance, then you are violating the permission they feel they have given you in communicating with them. 

You’ve Accepted the Challenge to Stand Out

Did you know: roughly over 3 million emails are sent every second?

Your customer inbox is an intersection of all kinds of business, customer-facing, and personalized emails. Not to mention, spam.

With that in mind, you need to earn your place to land in their inbox—which is another reason relevancy is crucial.

Consider troubleshooting deliverability issues: 

Email Deliverability
Image Credit: Martech Zone

9 Tips on How to Improve Email Deliverability

When people think about email deliverability, it is synonymous in their minds to a business’s sender reputation.

All internet service providers (ISP’s) tend to rely on an invisible algorithm, or scoring system, which helps them determine whether an email is being sent from a reputable source. 

The likelihood of your emails ending up in either the inbox, promotions tab, or an unfavorable space like the spam folder, depends on your sender/domain reputation based on this assigned score.

Email Deliverability
Image Credit: Snov.io

Naturally, to improve email deliverability, you want to improve your email reputation.

Here are 9 actionable ways in which you can achieve that.

Double Opt-In vs Single Opt-In

To stay in good repute with your customers, you want to be sure your strategy reflects an understanding of permission-based marketing.

For this reason, you want to include a double-opt in feature for your subscribers to ascertain whether they genuinely want to receive communications from you. 

What is the difference between double opt-in and single opt-in subscription? 

With a double opt-in feature, your customer gets an email to confirm their subscription and thus be converted to an email recipient in your list. 

Basically, this stops spammers signing up to your email list when you simply have a subscribe button. 

This is important, since sending emails to spam recipients will make it bounce back and lower your deliverability.

Check the following email that allows Chipotle clients to confirm their subscription.

Email
Image Credit: Really Good Emails

What makes their verification email so effective is that they include:

  1. links to their menu, 
  2. a store locator, and 
  3. an option to order.

In so doing, they give their potential customers an opportunity to test their service and therefore validate their subscription.

Clean Your Mailing List

This is one of your email deliverability best practices.

It involves targeting people who’ve fallen to the wayside and haven’t purchased from you within a certain period of time.

Of course, this depends on what the sales cycle of your business looks like. 

There’s a way of automating this with Klaviyo, where you will be given a feature to suppress segments in your mailing list

This is one of your powerful email deliverability tools.

You can lose these segments, without losing the email addresses. The only way of getting rid of these profiles is to delete them—which is good when they are inactive.

Tool
Image Credit: Klaviyo

Suppressing segments is also important to not increase the  Klaviyo subscription fee based on how many email contacts you have. 

However, you will still have these contacts available should you wish to revisit them for Facebook ads and retargeting. 

Send to Engaged Segments

Even though you have a mailing list, you may not be sending emails to a really engaged part of that list.

Engaged segments are people who’ve opened, clicked, or made a purchase from you within the last 30 to 90 days.

When you first start, you want to send emails to people who’ve been engaged for 30 days.

After this, you can widen your net. But your open rates will decrease. 

If this occurs to a point where your open rates are under 15 percent, you might want to decrease  sending more emails to your previous engaged segment category.

Segments
Image Credit: Klaviyo

However, you need to understand the importance of keeping open rates unaffected.

When it comes to email marketing, lowered open rates will affect all the other automations you have set up, like abandoned cart emails, welcome flow email, etc.

Thus, when you’re doing campaigns, you should always target the engaged segments and look at your open rates.

NOTE: With the latest iOS 15 update, open rates may not be the best thing to track nowadays. 

However, you can rely on your click-through-rates

Thus, if you see you have a lower CTR, you may want to determine how you boost the numbers again.

Check Your Email Content

When looking at email deliverability best practices, content quality cannot be overlooked.

Consider the following example, highlighting elements that will make an ISP flag this email as spam.

Email Content
Image Credit: Yesware

It all comes down to not including “spammy” text in your email.

Did you know there are specific types of content that trigger the spam filter? 

When writing email copy, try to avoid the following:

  • Writing in all caps
  • Using too much punctuation (i.e. overuse of exclamation points)
  • Using red font
  • Overuse of spam words (free, cheap, bargain, $$$, bonus, urgent, don’t wait! and the like.)
  • HTML errors (broken links or pages)
  • Too many images

Above all, you should be taking special care of your subject lines. Would you trust opening any of the following?

Email Content

Image Credit: Rare Logic

Email subject lines should be one of your first considerations with regards to email deliverability best practices.

When the email service provider receives an email, it checks the subject line and email content for spam-like copy. 

And as mentioned, this could affect your email reputation.

Aside from avoiding the pitfalls mentioned above, do the following when crafting your subject lines: 

  1. Avoid click-bait and false promises. Sure, it might get someone to open the email, but it’ll also lead to frustration and loss of trust. 

This drives people to unsubscribe from your mailing list and report you as spam—a terrific way to kill your sender reputation.

  1. Make the subject line interesting, intriguing, and relevant. As mentioned above, you shouldn’t oversell your content. 

But, you should still make your subject line enticing. 

  1. Keep the sender name. This adds to the reputability of the source the email is sent from.

Check out this video on how to curate email subject lines that could increase open rates.

Email Subject Lines That Work

Check Blacklists

Blacklisting is a stricter block used by ISPs to disable IP addresses from sending emails to them.

If you land on a blacklist, you may want to focus all of your attention on getting off of it. 

You would need to appeal to a blacklisting organization to be removed, and demonstrate better email sending habits afterwards.

Send Consistently

Even though you don’t want to overwhelm your mail recipients with messages, you still want to be front of mind. 

Scheduled mailing will help create expectations with your customers, while random or irregular emails (like exclusively during holidays or anniversaries) will make them question your legitimacy.

Normally, eCommerce stores can think about sending about as many as 3 emails a day.

Newsletters are a good method of staying in touch, as approached by Spotify Design.

Scheduled mailing
Image Credit: Really Good Emails

Dedicated vs Shared IP

Sending emails on a shared IP address is how many email providers like Klaviyo and ActiveCampaign work. 

The problem with this approach is that you’re sharing your IP address with multiple other businesses and relying on their open rates to be good. 

Obviously, you’d rather want to keep it very tight knit. 

With a dedicated IP address, you are in control, and you can theoretically increase your open rates by another 3 percent!

Klaviyo has a guide on shared vs dedicated domains that might guide you in the decision.

Make it Easy to Unsubscribe

Dedicated vs Shared IP
Image Credit: Really Good Emails

The above example takes it one step further, giving the client the option to stay in touch. 

This feature is a no-brainer, but people want the option to opt out easily

If they don’t, they may feel trapped and be motivated to flag your emails as spam where they at least won’t have to see it. 

Send Good Content

It’s simple: if you have all the bells and whistles to attract someone’s attention, then you better show them something that makes it worth their while.

If you feel your content is one of the things you need to address to improve email deliverability, then our experts at KAMG can help you curate quality content.

We Can Help You Deliver

Want to build a better email reputation through email deliverability best practices?

At KAMG, our email marketing experts will help you to send great content consistently, and make sure your campaigns land with your engaged customers.

Get in touch, and we’ll show you how to improve email deliverability today!

Kas Andz is a multi-award-winning marketing leader, and the founder of KAMG. He is one of the top digital marketing experts in the UK and has helped companies and brands across Europe, North America and Asia to achieve greater revenue and expand sustainably. He also tries to play football when he can but doesn’t succeed as well as he would like.

FAQs

What is the difference between hard bounce and soft bounce in email deliverability?

When your emails experience a hard bounce, it is likely you’ve sent it to an invalid/non-existent email address—giving you hints as to your mailing list hygiene.

With a soft bounce, the reasons may vary. However, it typically occurs if ISPs detect an unexpected increase in your sending volume.

How can I do an email deliverability check?

Look into email marketing tools like GlockApps. They allow you to run inbox tests for your email campaign. 

Other than that, they offer full reports and tips for email deliverability, blacklist monitors, and even offer template editors to cut out risky content.

How can I improve the CTR of my emails?

It’s all about the quality of your copy! 

There are tons of tips on how to guarantee a better click-through rate, but it comes down to writing targeted, personalized, and engaged content with persuasive CTA’s.

Kas Andz

Kas Andz

Author

Kas Andz is a multi-award-winning marketing leader, and the founder of KAMG. He is one of the top digital marketing experts in the UK and has helped companies and brands across Europe, North America and Asia to achieve greater revenue and expand sustainably. He also tries to play football when he can but doesn’t succeed as well as he would like.

Blog

Related Blogs

digital marketing
up-right-arrow1

Privacy Policy

Last updated: June 08, 2022

This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You.

We use Your Personal data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy.

Interpretation and Definitions

Interpretation

The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural.

Definitions

For the purposes of this Privacy Policy:

  • Account means a unique account created for You to access our Service or parts of our Service.

  • Company (referred to as either “the Company”, “We”, “Us” or “Our” in this Agreement) refers to Kas Andz Marketing Group, International House, 24 Holborn Viaduct, London EC1A 2BN.

  • Cookies are small files that are placed on Your computer, mobile device or any other device by a website, containing the details of Your browsing history on that website among its many uses.

  • Country refers to: United Kingdom

  • Device means any device that can access the Service such as a computer, a cellphone or a digital tablet.

  • Personal Data is any information that relates to an identified or identifiable individual.

  • Service refers to the Website.

  • Service Provider means any natural or legal person who processes the data on behalf of the Company. It refers to third-party companies or individuals employed by the Company to facilitate the Service, to provide the Service on behalf of the Company, to perform services related to the Service or to assist the Company in analyzing how the Service is used.

  • Usage Data refers to data collected automatically, either generated by the use of the Service or from the Service infrastructure itself (for example, the duration of a page visit).

  • Website refers to Kas Andz Marketing Group, accessible from kasandz.

  • You means the individual accessing or using the Service, or the company, or other legal entity on behalf of which such individual is accessing or using the Service, as applicable.

Collecting and Using Your Personal Data

Types of Data Collected

Personal Data

While using Our Service, We may ask You to provide Us with certain personally identifiable information that can be used to contact or identify You. Personally identifiable information may include, but is not limited to:

  • Email address

  • First name and last name

  • Phone number

  • Address, State, Province, ZIP/Postal code, City

  • Usage Data

Usage Data

Usage Data is collected automatically when using the Service.

Usage Data may include information such as Your Device’s Internet Protocol address (e.g. IP address), browser type, browser version, the pages of our Service that You visit, the time and date of Your visit, the time spent on those pages, unique device identifiers and other diagnostic data.

When You access the Service by or through a mobile device, We may collect certain information automatically, including, but not limited to, the type of mobile device You use, Your mobile device unique ID, the IP address of Your mobile device, Your mobile operating system, the type of mobile Internet browser You use, unique device identifiers and other diagnostic data.

We may also collect information that Your browser sends whenever You visit our Service or when You access the Service by or through a mobile device.

Tracking Technologies and Cookies

We use Cookies and similar tracking technologies to track the activity on Our Service and store certain information. Tracking technologies used are beacons, tags, and scripts to collect and track information and to improve and analyze Our Service. The technologies We use may include:

  • Cookies or Browser Cookies. A cookie is a small file placed on Your Device. You can instruct Your browser to refuse all Cookies or to indicate when a Cookie is being sent. However, if You do not accept Cookies, You may not be able to use some parts of our Service. Unless you have adjusted Your browser setting so that it will refuse Cookies, our Service may use Cookies.
  • Flash Cookies. Certain features of our Service may use local stored objects (or Flash Cookies) to collect and store information about Your preferences or Your activity on our Service. Flash Cookies are not managed by the same browser settings as those used for Browser Cookies. For more information on how You can delete Flash Cookies, please read “Where can I change the settings for disabling, or deleting local shared objects?” available at flash player.
  • Web Beacons. Certain sections of our Service and our emails may contain small electronic files known as web beacons (also referred to as clear gifs, pixel tags, and single-pixel gifs) that permit the Company, for example, to count users who have visited those pages or opened an email and for other related website statistics (for example, recording the popularity of a certain section and verifying system and server integrity).

Cookies can be “Persistent” or “Session” Cookies. Persistent Cookies remain on Your personal computer or mobile device when You go offline, while Session Cookies are deleted as soon as You close Your web browser. Learn more about cookies on the Free Privacy Policy website article.

We use both Session and Persistent Cookies for the purposes set out below:

  • Necessary / Essential Cookies

    Type: Session Cookies

    Administered by: Us

    Purpose: These Cookies are essential to provide You with services available through the Website and to enable You to use some of its features. They help to authenticate users and prevent fraudulent use of user accounts. Without these Cookies, the services that You have asked for cannot be provided, and We only use these Cookies to provide You with those services.

  • Cookies Policy / Notice Acceptance Cookies

    Type: Persistent Cookies

    Administered by: Us

    Purpose: These Cookies identify if users have accepted the use of cookies on the Website.

  • Functionality Cookies

    Type: Persistent Cookies

    Administered by: Us

    Purpose: These Cookies allow us to remember choices You make when You use the Website, such as remembering your login details or language preference. The purpose of these Cookies is to provide You with a more personal experience and to avoid You having to re-enter your preferences every time You use the Website.

For more information about the cookies we use and your choices regarding cookies, please visit our Cookies Policy or the Cookies section of our Privacy Policy.

Use of Your Personal Data

The Company may use Personal Data for the following purposes:

  • To provide and maintain our Service, including to monitor the usage of our Service.

  • To manage Your Account: to manage Your registration as a user of the Service. The Personal Data You provide can give You access to different functionalities of the Service that are available to You as a registered user.

  • For the performance of a contract: the development, compliance and undertaking of the purchase contract for the products, items or services You have purchased or of any other contract with Us through the Service.

  • To contact You: To contact You by email, telephone calls, SMS, or other equivalent forms of electronic communication, such as a mobile application’s push notifications regarding updates or informative communications related to the functionalities, products or contracted services, including the security updates, when necessary or reasonable for their implementation.

  • To provide You with news, special offers and general information about other goods, services and events which we offer that are similar to those that you have already purchased or enquired about unless You have opted not to receive such information.

  • To manage Your requests: To attend and manage Your requests to Us.

  • For business transfers: We may use Your information to evaluate or conduct a merger, divestiture, restructuring, reorganization, dissolution, or other sale or transfer of some or all of Our assets, whether as a going concern or as part of bankruptcy, liquidation, or similar proceeding, in which Personal Data held by Us about our Service users is among the assets transferred.

  • For other purposes: We may use Your information for other purposes, such as data analysis, identifying usage trends, determining the effectiveness of our promotional campaigns and to evaluate and improve our Service, products, services, marketing and your experience.

We may share Your personal information in the following situations:

  • With Service Providers: We may share Your personal information with Service Providers to monitor and analyze the use of our Service, to contact You.
  • For business transfers: We may share or transfer Your personal information in connection with, or during negotiations of, any merger, sale of Company assets, financing, or acquisition of all or a portion of Our business to another company.
  • With Affiliates: We may share Your information with Our affiliates, in which case we will require those affiliates to honor this Privacy Policy. Affiliates include Our parent company and any other subsidiaries, joint venture partners or other companies that We control or that are under common control with Us.
  • With business partners: We may share Your information with Our business partners to offer You certain products, services or promotions.
  • With other users: when You share personal information or otherwise interact in the public areas with other users, such information may be viewed by all users and may be publicly distributed outside.
  • With Your consent: We may disclose Your personal information for any other purpose with Your consent.

Retention of Your Personal Data

The Company will retain Your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy. We will retain and use Your Personal Data to the extent necessary to comply with our legal obligations (for example, if we are required to retain your data to comply with applicable laws), resolve disputes, and enforce our legal agreements and policies.

The Company will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of Our Service, or We are legally obligated to retain this data for longer time periods.

Transfer of Your Personal Data

Your information, including Personal Data, is processed at the Company’s operating offices and in any other places where the parties involved in the processing are located. It means that this information may be transferred to — and maintained on — computers located outside of Your state, province, country or other governmental jurisdiction where the data protection laws may differ than those from Your jurisdiction.

Your consent to this Privacy Policy followed by Your submission of such information represents Your agreement to that transfer.

The Company will take all steps reasonably necessary to ensure that Your data is treated securely and in accordance with this Privacy Policy and no transfer of Your Personal Data will take place to an organization or a country unless there are adequate controls in place including the security of Your data and other personal information.

Disclosure of Your Personal Data

Business Transactions

If the Company is involved in a merger, acquisition or asset sale, Your Personal Data may be transferred. We will provide notice before Your Personal Data is transferred and becomes subject to a different Privacy Policy.

Law enforcement

Under certain circumstances, the Company may be required to disclose Your Personal Data if required to do so by law or in response to valid requests by public authorities (e.g. a court or a government agency).

Other legal requirements

The Company may disclose Your Personal Data in the good faith belief that such action is necessary to:

  • Comply with a legal obligation
  • Protect and defend the rights or property of the Company
  • Prevent or investigate possible wrongdoing in connection with the Service
  • Protect the personal safety of Users of the Service or the public
  • Protect against legal liability

Security of Your Personal Data

The security of Your Personal Data is important to Us, but remember that no method of transmission over the Internet, or method of electronic storage is 100% secure. While We strive to use commercially acceptable means to protect Your Personal Data, We cannot guarantee its absolute security.

Children’s Privacy

Our Service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under the age of 13. If You are a parent or guardian and You are aware that Your child has provided Us with Personal Data, please contact Us. If We become aware that We have collected Personal Data from anyone under the age of 13 without verification of parental consent, We take steps to remove that information from Our servers.

If We need to rely on consent as a legal basis for processing Your information and Your country requires consent from a parent, We may require Your parent’s consent before We collect and use that information.

Links to Other Websites

Our Service may contain links to other websites that are not operated by Us. If You click on a third party link, You will be directed to that third party’s site. We strongly advise You to review the Privacy Policy of every site You visit.

We have no control over and assume no responsibility for the content, privacy policies or practices of any third party sites or services.

Changes to this Privacy Policy

We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page.

We will let You know via email and/or a prominent notice on Our Service, prior to the change becoming effective and update the “Last updated” date at the top of this Privacy Policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

Contact Us

If you have any questions about this Privacy Policy, You can contact us:

  • By email: team@kasandz.com