Repair Your Email and SMS Reputation for Better Deliverability

In digital marketing, reputation is everything. Especially when it comes to email and SMS deliverability. If your email domain or phone number has developed a poor reputation, your messages may land in spam folders or fail to reach your audience. If you’re dealing with email domain SMS number reputation issues, taking proactive steps can help restore your sending credibility.

Understanding Email Domain Reputation and How It Declines

Your email domain reputation is determined by factors such as engagement rates, bounce rates, spam complaints, and authentication protocols. If your emails consistently go unopened, generate spam reports, or are sent in high volumes to invalid addresses, email service providers may flag your domain as untrustworthy. Common reasons for reputation decline include:

• • Sending bulk emails to unengaged or outdated lists
  • High spam complaints from recipients
  • A lack of proper authentication (SPF, DKIM, DMARC)
  • Sudden spikes in email volume from a previously inactive domain

Steps to Repair Email Domain Reputation

1. Authenticate Your Emails: Ensure that SPF, DKIM, and DMARC records are correctly set up to verify your emails as legitimate and prevent spoofing attempts.
2. Clean Your Email List: Remove inactive, bounced, or unengaged subscribers to improve engagement rates and reduce complaints.
3. Warm Up Your Domain: If your reputation has taken a hit, gradually increase your sending volume instead of blasting large campaigns at once.
4. Encourage Engagement: Use targeted content and personalization to encourage replies, opens, and clicks.
5. Monitor Your Sending Metrics: Use tools like Google Postmaster Tools, MXToolbox, or your ESP’s analytics to track deliverability and identify issues early.
6. Pause Sending If Necessary: If your domain is severely damaged, a short sending pause can help reset your reputation while you implement improvements.

SMS Number Reputation: Why It Matters and How It Gets Damaged

Just like email, SMS marketing is subject to reputation-based filtering. Carriers use algorithms to determine whether messages should be delivered, flagged as spam, or blocked entirely. Poor number reputation can result from:

• High complaint rates (users marking messages as spam)
• Sending messages too frequently or without user consent
• High opt-out rates from recipients
• Using generic or misleading content that resembles spam

How to Repair SMS Number Reputation

1. Register Your Number Properly: If you’re using an A2P (Application-to-Person) messaging system, ensure your number is registered for compliance with 10DLC regulations.
2. Gain Explicit Consent: Only send messages to users who have opted in, and make it easy for them to opt out.
3. Improve Message Quality: Keep SMS content relevant, personalized, and valuable to recipients.
4. Proper Segmentation: Exclude segments based on low engagement and another based on SMS errors.
5. Control Sending Frequency: Avoid overwhelming users with excessive messages that could trigger complaints.
6. Monitor and Rotate Numbers If Necessary: If your current number is heavily flagged, you may need to switch to a fresh number while applying better sending practices.

Final Thoughts

Rebuilding your email and SMS reputation takes time, but you can restore trust with inbox providers and mobile carriers. By focusing on authentication and compliance, you can improve deliverability and ensure that your messages are reaching the right audience.

If you’re struggling with email or SMS reputation issues, start implementing these best practices today. You’ll soon see an improvement in your campaign performance. Sandhill Digital is here to help you repair your sending reputation and any other email/SMS needs.