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6 tips to avoid ending up in the spam box

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Reading time minutes
By Patrick Schokker

Billions of emails are sent every day, making it a challenge to get your email noticed in the mailbox of your target audience. You also have to make sure that your email does not end up in the spam box, otherwise you will never get a good open rate. These 6 tips will make sure your email at least gets into the inbox and gets noticed by the recipient:

1. A quality database

For a good sending reputation, the quality of your database plays a big role. A good reputation is important since the provider of the mailbox determines whether the e-mail will be delivered to the inbox on this basis.

2. A catchy subject line

With the subject line you attract the first attention of the recipient, it should therefore be catchy and immediately invite the recipient to open the e-mail. However, the subject line should not attract the attention of the spam filter. Pay attention to unnecessary use of capitals and punctuation, try to avoid this.

3. Provide relevant content

Behind every recipient of an e-mail is a person with unique interests. When an e-mail is not interesting enough for this person, the e-mail is left unread.

When this happens, the mailbox provider registers this. The e-mail is then marked as not relevant enough or even junk e-mail. The next time you send an e-mail, the spam filter will monitor the e-mail immediately.

4. Properly organize the unsubscribe process

When you set up the unsubscribe process in such a way that the customer can subscribe or unsubscribe segmented per type of e-mail, you ensure that a customer does not have to unsubscribe completely. As a result, you don't lose any recipients and you ensure that the recipient only receives relevant emails. Just make sure that the unsubscribe process is easy, otherwise there is a chance that the recipient will unsubscribe completely.

5. Don't make emails too big

Some mailboxes block emails that are too heavy. This prevents the user's inbox from filling up. Often users set this up themselves. Therefore, make sure emails are not too large. Also, you also run the risk of a recipient dropping out when there are, for example, heavy images in the mail that load too slowly. 

6. Test the emails

By testing the send day, subject line and send time, you can further optimize the relevance and timing of your emails which can lead to higher interaction. This higher interaction, in turn, can contribute to your sending reputation. And a better sending reputation makes your emails less likely to end up in the spam box. When comparing the B2B and B2C sectors, large differences can be seen based on the most popular sending day. In the B2B sector, Thursday is the most popular day, followed by Tuesday. In the B2C sector, the most popular shipping day is Wednesday. When it comes to sending time, two peaks can be seen: between 8 a.m. and 9 a.m. and at 5 p.m. on average, the most emails are sent. 

test emails to avoid spam box

Read more about the best shipping day and time by industry here. 

Still ended up in the spam box?

Do your e-mail reports show that you still regularly end up in the spam box? If so, try to find out what's causing it. It can also happen that at some point you build up a bad sending reputation and end up blacklisted. In this case, contact the program you use to send email campaigns to resolve this. 

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Patrick Schokker
Patrick Schokker

About this schurq

General Manager

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