Overview #
When using a masked email address to send from your own domain, deliverability doesn’t just depend on the content of your email – it also depends on the reputation of your domain.
Email providers like Gmail, Outlook, and Yahoo track how your domain behaves over time. A good reputation improves your inbox placement. A poor one can land you in spam, or even block your emails entirely.
What is Domain Reputation? #
Your domain reputation is like a credit score for email. It’s based on how trustworthy and consistent your domain has been when sending emails over time.
Email providers monitor:
- How often your emails are opened or clicked
- How many are deleted without being opened
- If users report your messages as spam
- Whether your domain has been used for spam or phishing in the past
- Technical settings like SPF, DKIM, and DMARC
Why It Matters for Masked Sending #
When you use email masking, you’re asking platforms like Gmail to trust that you’re legitimately sending from your domain – even though the technical sender is a third party (our platform, via AWS SES).
If your domain doesn’t already have a good reputation, or is brand new, it may take time to build trust. Sending too much too soon from a fresh domain can hurt your standing from the start.
Use a Domain That’s Already Established #
| Domain Age | Risk Level | Recommendation |
|---|---|---|
| 🆕 Less than 1 month | High risk | Avoid using brand-new domains unless absolutely necessary |
| 🟡 1 to 6 months | Moderate | Use with caution, send slowly and build up over time |
| ✅ 6+ months | Low risk | Best option, especially if the domain has a history of legitimate use |
How to Build and Protect Domain Reputation #
| Tip | Why It Helps |
|---|---|
| 📬 Start small | Send a small batch of emails first, then gradually increase volume |
| 📊 Monitor engagement | Focus on sending emails people open and interact with |
| 🧹 Keep your list clean | Avoid sending to invalid or unengaged addresses |
| 🚫 Avoid spammy content | Don’t use misleading subject lines, overuse images, or use too many salesy keywords |
| 📧 Use real reply-to addresses | Don’t hide behind no-reply – it lowers trust |
| 🧪 Test your emails | Send test messages to yourself and check where they land (inbox vs spam) |
| 🔄 Keep a consistent sending schedule | Avoid large, unpredictable spikes in activity |
Tools to Check Your Domain Reputation #
While reputation scores aren’t always publicly visible, here are some tools that can help:
- Google Postmaster Tools – Great for Gmail deliverability insights
- MXToolbox – Useful for DNS checks and blacklists
- Talos (by Cisco) – Shows general domain reputation status
Summary #
| Action | Result |
|---|---|
| ✅ Use a domain with some history | More likely to be trusted by inbox providers |
| ✅ Build slowly with clean content | Helps you avoid spam folders and throttling |
| ❌ Send bulk emails from a brand-new domain | Likely to get blocked or flagged |
| ❌ Ignore engagement rates and complaints | Hurts your future deliverability |
A strong domain reputation takes time to earn but pays off with better inbox placement and higher open rates. If you’re setting up email masking, we strongly recommend using a domain with some history and following best practices to protect its reputation.
