How to Fix Gmail’s ‘Your Sender Domain is Spam’ Error

If Gmail flags emails from your domain with the message “Lots of messages from DOMAIN were identified as spam in the past,” it indicates issues with your email deliverability or sender reputation. Our guide provides steps to resolve these issues and ensure better email delivery of your emails sent through Ecenica.

1. Use the Email Deliverability Tool in Ecenica cPanel

Our Email Deliverability tool helps identify and resolve common configuration problems with your domain.

Steps to Fix:

1. Log in to your cPanel account.
2. Navigate to Email > Email Deliverability.
3. Locate your domain and review its status.
   • Errors such as missing SPF, DKIM, or DMARC records will be highlighted.
4. Click Manage next to your domain to view details and apply the recommended fixes.

Common Issues Addressed:

• Missing SPF, DKIM, or DMARC records.
• DNS misconfigurations that affect email authentication.

2. Configure SPF, DKIM, and DMARC Records

Proper configuration of SPF, DKIM, and DMARC ensures your emails are trusted by Gmail.

Steps to Fix Using cPanel:

• SPF (Sender Policy Framework): Ensures only authorized servers send emails for your domain.
• DKIM (DomainKeys Identified Mail): Adds a cryptographic signature to verify that your email hasn’t been altered.
• DMARC (Domain-based Message Authentication, Reporting, and Conformance): Protects your domain from spoofing by aligning SPF and DKIM.

Action:

1. Use the Email Deliverability tool to generate these records.
2. Copy the provided DNS records.
3. Add these records to your DNS zone via cPanel or your domain registrar.

3. Monitor Domain Reputation

A poor domain reputation will result in your emails being flagged as spam.

Steps to Fix:

• Use Google Postmaster Tools to monitor your domain’s reputation.
  • Track email performance and identify issues that affect deliverability.
• Regularly review the Email Deliverability tool for any remaining configuration errors.

4. Ensure Proper SMTP Usage

Ensure you are using the Ecenica SMTP server to send emails. Using a different SMTP service can result in your email being rejected due to verification failures.

Why This Matters:

• Gmail performs stringent checks to verify email authenticity.
• Mismatched SMTP servers can fail SPF, DKIM, and DMARC checks, leading to emails being flagged or rejected.

5. Verify Your Domain through Google Postmaster Tools

Verifying your domain through Postmaster Tools helps build trust with Gmail and improves email deliverability.

Steps to Verify:

1. Go to Google Postmaster Tools.
2. Add your domain and choose the TXT record verification method.
3. Follow the instructions to add the provided TXT record to your domain’s DNS settings.

6. Optimize Email Content and Sending Practices

Spam filters often flag poorly designed or irrelevant content.

Best Practices:

• Avoid spammy language and misleading subject lines.
• Maintain a balanced text-to-image ratio.
• Use a clean, professional design.
• Send emails only to engaged recipients and remove inactive ones.
• Gently remind your contacts to add your sender address to their address book or safe senders’ list. This improves inbox placement.

Proactive Steps:

• Avoid sending too many emails at once to prevent Gmail from throttling or flagging your domain.
• Use consistent “From” addresses to build trust.

7. Request a Review from Gmail

Once you’ve resolved configuration and reputation issues, you can request Gmail to review your domain.

Steps to Fix:

1. Visit the Gmail Bulk Sender Contact Form.
2. Provide accurate details about your domain, its configuration, and improvements made.

8. Prevent Future Issues

To maintain your domain’s good standing:
– Regularly check your email authentication (SPF, DKIM, DMARC).
– Monitor your domain reputation using Google Postmaster Tools.
– Test emails before sending using tools to check spam scores.