Why Emails Are Flagged as Spam and How to Prevent It

Overview

Email deliverability is a critical part of running your business. If you've experienced cases where emails sent through Supermove are flagged as spam, this guide will help you understand the possible causes and provide actionable recommendations to improve deliverability.

What Causes Emails to Be Flagged as Spam?

Spam detection is primarily influenced by the content of the email. While Supermove ensures that emails are sent properly through our email delivery service (SendGrid), the recipient’s email provider determines whether the email lands in the inbox or is flagged as spam.

Here are some common reasons why an email may be marked as spam:

• Too Many Links: Emails that contain a high number of hyperlinks can be flagged as suspicious by spam filters. These filters are designed to catch phishing or malicious emails, which often include excessive links

• Excessive Use of Images: Emails with many or large images may be flagged because spam filters often prioritize plain-text emails over visually heavy ones

• Spammy Words or Phrases: Certain words or phrases (e.g., "Congratulations!" or "Exclusive offer!") in subject lines or body text can trigger spam filters

• Recipient Feedback: If recipients frequently mark your emails as spam, this behavior is tracked by their email provider, which can affect future deliverability

---

Tips to Prevent Emails from Being Flagged as Spam

To improve deliverability and reduce the likelihood of emails being flagged, consider the following best practices:

• Limit Links: Include only essential links in your emails. Avoid linking to too many external websites or including unnecessary hyperlinks

• Use Fewer Images: Rely more on plain text and limit the use of images. If you must include images, ensure they are optimized for email and don’t take up excessive space

• Create Clear and Professional Content: Use concise, professional language in your emails. Avoid using excessive capitalization, exclamation marks, or overly promotional wording

• Ask Recipients to Whitelist Your Email Address: Encourage your recipients to add your email address to their contact list or whitelist. This signals to their email provider that your messages are trusted (likely [e-mail])

• Test Your Emails: Before sending to a customer, send an email to yourself and monitor for any irregular behaviors

Why Not All Customers Experience Spam Issues

It’s important to note that email content plays the largest role in determining whether an email is flagged as spam. While Supermove ensures proper delivery through SendGrid, the way an email is designed and written can vary significantly between customers. This is why some customers may experience spam issues while others do not.

Tips: For more resources on improving email deliverability, please check out Best Practices for Avoiding Spam Filters and reach out to [e-mail] if you have any questions.