How can I improve my email deliverability and prevent emails from going to the spam folder?

Email deliverability is influenced by two primary factors: your sender reputation and the email's content. If your emails are landing in spam, review the following best practices:

1. Sender Reputation & Authentication

Ensure your sending domain is properly authenticated. This is a critical technical step that proves to mailbox providers that you are a legitimate sender.

• SPF, DKIM, and DMARC: These are email authentication standards. Make sure they are correctly configured for your sending domain. A valid configuration helps prevent spoofing and builds trust.
• Google Postmaster Tools: We highly recommend registering and verifying your sending domain with Google Postmaster Tools. It provides valuable data directly from Google on your domain's reputation, spam rate, and other metrics that can help you diagnose deliverability issues.

2. Email Content

Mailbox providers analyze the content of your emails to determine if they are valuable to the recipient or if they resemble spam. This is especially important for transactional emails (like registration confirmations or password resets).

Even if an email's purpose is transactional, it can be flagged as spam if it contains too many marketing-like elements. To improve inbox placement:

• Simplify Your Template: A transactional email should be focused and simple. Its main purpose is to deliver critical information (e.g., a confirmation code). Avoid cluttering it with non-essential elements.
• Minimize Links: Reduce the number of links in the email body. An email with numerous links to social media profiles, app stores, and other promotional pages is more likely to be filtered as spam.
• Implement List-Unsubscribe: Including a List-Unsubscribe header is a highly recommended practice. It gives users an easy, one-click way to opt out without marking your message as spam, which helps protect your sender reputation.