Did your email land in the spam folder? Well, friends, welcome to the exciting world of email marketing. Sooner or later, it happens to everyone—seasoned marketers included.

First of all, don't feel bad about it.

Second, learn from it, so that you can avoid it next time.

And when it comes to learning, we've got good news and bad news for you.

Let's take a look at them.

The most important rule of email marketing is to always make sure you send emails to people who opted in. You need their consent and should never assume that they want to hear from you.

You can get their consent by using language in your sign-up forms that is clear and transparent. If you’ll be adding them to your email list and sending them promotional emails, let them know.

Need some ideas? Take a look at the below example:

Think about it this way. If you send emails that your recipients don’t expect or recognize, they may mark them as unwanted spam. When they do that, their email server will filter out all your future emails as well.

The more your recipients mark your email as unwanted spam, the more your emails will miss the inbox. This can damage your sender reputation in the long run.

Spam filters also check how much your recipients love your emails. If your audience doesn't engage with your emails in a positive way, they take it as a sign that your emails aren’t wanted. And next time they may not deliver them to the inbox.

Positive engagement is when they:

After you send out an email in Flodesk, you can track how your recipients engage with it.

On your Emails dashboard, hover over the sent email's card and click on View Results.

You’ll see your email's performance, including:

Looking at benchmarks can help you understand how much room for improvement you have with your emails—or if you’re leading the pack. You can learn about the latest email marketing benchmark figures with Q1 and Q2 2019 data here.

Keep in mind that average engagement rates, open rates and click rates vary by:

So make sure to compare your email’s engagement with others in similar industries and locations as yours. (Context is everything.)

Every promotional and marketing email has to have an unsubscribe button or link. And not just because it’s the law. If you think about it, having a prominent unsubscribe link or button is also in your best interest.

Because your goal should be to have a healthy, engaged email list, this includes letting subscribers go when they want to unsubscribe.

Maybe they feel you can’t serve them anymore, or they don’t like the color you picked for your last newsletter header or maybe they thought they were signing up for something completely different.

Whatever the reason, when people want to unsubscribe, they want to do so quickly and easily.

So what happens if they can’t find the unsubscribe link? They may send you an angry email asking you to remove them from your list.

Or worse—and what happens even more often—is that they mark your email as spam. And this can hurt the success of your future email campaigns.

We’ll be the first to tell you: Stunning images and design play a crucial role in email marketing (Flodesk's proprietary Layout blocks, anyone?). But don't forget about your actual email text.

Text-based content is crucial for your email, because text can be read by all email applications. If there's a network connection problem, your images may not load at all in your recipient's inbox. So if your email is made up of only images, your readers may get a blank email without any clues about what you wanted to share with them.

Also, spam filters can skim through text easily. That's why more and more scammers use image-heavy emails. They try to mask their fraudulent activities and avoid text-based spam filters. And you wouldn’t want to be mistaken for a scammer, would you?

Does this mean that you should stop adding images to your emails? Of course not.

But it means your emails shouldn't be images only.

We recommend using both text blocks and layout blocks in your emails to keep things both branded and functional. And as a best practice, always have more text than images in your email.

Spam filters not only analyze your email subject lines but also the body of the email. Sometimes these words seem harmless. But as they have been often misused by scammers and in phishing emails, they can alarm spam filters.

Automational released a list of 470+ keywords that could raise the spam filter alarm. Review this list and try to avoid these words and phrases in your email campaigns.

There are also free tools that can test the spamminess of your emails before sending them to your whole audience. For example, Mail-Tester checks your email and gives it a score on a scale of 1-10. They tell you what’s working well and where you could improve.

Lastly, you can also send a test email to yourself from within the Flodesk email editor.

If the test email lands in your own spam folder, that's a sign that you need to change your design or email copy.

Emails sent from free Yahoo, iCloud, me.com, bellsouth.net, Hotmail and even Gmail addresses have a much higher chance of being flagged as spam than a custom domain, such as you@yourdomain.com.

Why? Because scammers often use these free email services. They can easily set them up and can remain anonymous.

When you buy your website's domain and domain email address, it gets officially registered for you. It establishes you as a trustworthy, legitimate business. So if you're serious about email, this is your best bet. It looks more professional, too!

As an additional important step, make sure to authenticate your sending domain email address. You can read about how to authenticate your domain via DKIM here.

Once your domain is verified, it's one more signal that you’re not impersonating anyone else when sending marketing emails from that domain. This boosts your sender reputation and positively influences deliverability of your email campaigns.
​

If your subscribers are eager to get your emails filled with valuable, beautifully designed content, they won't mark it as spam.

​