How to Improve Deliverability of Mailgun Emails Heading to Spam?

Mallika Khandelwal

16th Sep'22
How to Improve Deliverability of Mailgun Emails Heading to Spam? | OpenGrowth

Recently, Email Marketing has become an increasingly effective and affordable way to market your products and boost your business. In addition, it's also remained one of the most responsible ways to reach out to your customers. 

The only problem with email marketing is getting your emails sent. The deliverability of every company's emails relies on an entire chain of events, from the content and format of a message to the sender's IP address, not just one thing. Here are some tips on how to prevent Mailgun emails marked spam.


1. Make Your Unsubscribe Link Easy to Find

One of the many things that can make your email marketing campaign more effective is your ability to give customers a way to unsubscribe from your emails. This is especially important if you're sending a newsletter because it ensures customers are informed they can remove themselves from future mailings. If you don't make it easy for users to unsubscribe, they may be tempted just to leave your email address in their inbox to receive future emails.

If you want to keep your business email list, you need to make sure you're giving customers space to opt out of any time they want. You can include an unsubscribe link on every page of your opt-in form and in the email. You should also set up a separate section on your site that lists how users can opt out of any communication with you. This includes newsletters (if you're sending them), contests, and anything else you might be doing to contact your customers.


2. Keep Your List Clean

Another smart way to prevent Mailgun emails marked spam is to keep your list clean. If you have spam emails in your database, your deliverability will suffer. As you collect more email addresses, you must check that they all belong to real people and are up-to-date. If you have outdated addresses or no longer work, you should remove them from your database as soon as possible.

You can't always tell when an email is no longer valid, but you can look for more obvious signs. If the email address is fake or doesn't belong to an active customer, you should get rid of it immediately. You can also take advantage of the Mailgun service by checking any email addresses that are automatically forwarded to your inbox for activity. If you're not receiving anything from that address, chances are it's no longer relevant.


Improve Deliverability of Mailgun Emails Heading to Spam


3. Use a Double Opt-in

A double opt-in is a special feature you'll want to use, as it keeps your customers current on everything you're doing. It can also help increase the quality of emails delivered to recipients' inboxes.

While doubling your opt-ins can lead to a higher impact in terms of quality and effectiveness, it also takes a lot longer to verify the authenticity of each email address. This is a tradeoff, but it's worth it since it can make a big difference in the overall quality of your mailing lists. With email addresses that don't belong to actual people or with fake information, you can count on these fraudulent emails to be reported as spam or deleted from inboxes.


4. Use a Consistent "from" Name and Email Address

A common mistake made by many businesses is using different names and addresses for their mailings. For example, if you have multiple email addresses for your company, it's not uncommon to have the same name and email address for each address. 

For example, an employee's display name is their first name and last initial followed by a department abbreviation, such as "J. Smith" for "Marketing." This is perfectly fine, but when it comes to delivering your emails, it can be difficult to recognize which email belongs to which person. If you have three different "J. Smith" emails in your database, only one of them will be able to deliver the email and gain access to the recipient's inbox.


5.  Don't use ALL CAPS in Your Subject Lines.

Subject lines can be the difference between an email getting filtered or landing in an inbox. Certain characters, like all caps, are often considered spammy, as they're hard to read and may appear as a mistake. 

You should avoid using all capital letters in your headlines to make it easier for both you and recipients to recognize what the emails are about.


6. Avoid Using Too Many Exclamation Points!!!!

Using capital letters and exclamation points in the subject line of your email can be a double-edged sword. On the one hand, they're great at creating an attention-grabbing effect, but on the other hand, they may get marked as spam. 

You can control how many exclamation points you use, but it should be limited to just one or two per message. You should also limit the frequency with which you use them in your email subject lines.


Improve Deliverability of Mailgun Emails Heading to Spam


7. Use HTML for Important Content in Your Email

HTML is a system used to create a more visual representation of your emails. You should use HTML in the body of your message if you have important information or content that will benefit from an image or other visual element. 

You can also use it to make an image of your logo appear at the top of an email or any kind of image related to a special promotion, such as a holiday sale or promotional campaign.



8. Include Images in Your Email

Everyone loves a good picture! Including images in your email marketing campaign can help immediately impact your company. People are more likely to respond to and open your emails if you make them visually appealing for them.


Final Words

To prevent Mailgun emails from being marked spam, you need to ensure that the information in your database is up-to-date and accurate. You can do this by regularly removing expired emails and checking the information on each address you're sending to. 

You must set up a double opt-in to prevent fraudulent, automated messages from affecting your email marketing campaigns. Using HTML in your emails, you can create an effective campaign with high open and response rates.


We at OpenGrowth, are committed to keeping you updated with the best content on the latest trendy topics from any major field. Also, both your feedback and suggestions are valuable to us. So, do share them in the comment section below.


A staunch proponent of karma, Mallika believes in what goes around, comes around philosophy. She is ecstatic with her life and strives to live it to the fullest.


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