---
title: Email Masking - Domain Reputation and Deliverability
description: 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 theβ¦
---
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15 July 2026
# Email Masking - Domain Reputation and Deliverability
#### 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
**π Less than 1 month**
*Risk Level:* High risk
*Recommendation:* Avoid using brand-new domains unless absolutely necessary
**π‘ 1 to 6 months**
*Risk Level:* Moderate
*Recommendation:* Use with caution, send slowly and build up over time
**β
6+ months**
*Risk Level:* Low risk
*Recommendation:* Best option, especially if the domain has a history of legitimate use
#### How to Build and Protect Domain Reputation
**Tip** / **Why It Helps**
- **π¬ Start small** β Send a small batch of emails first, then gradually increase volume
- **π Monitor engagement** β Focus on sending emails people open and interact with
- **π§Ή Keep your list clean** β Avoid sending to invalid or unengaged addresses
- **π« Avoid spammy content** β Don't use misleading subject lines, overuse images, or use too many salesy keywords
- **π§ Use real reply-to addresses** β Don't hide behind no-reply - it lowers trust
- **π§ͺ Test your emails** β Send test messages to yourself and check where they land (inbox vs spam)
- **π Keep a consistent sending schedule** β 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** β Great for Gmail deliverability insights
- **MXToolbox** β Useful for DNS checks and blacklists
- **Talos (by Cisco)** β Shows general domain reputation status
#### Summary
**Action** / **Result**
- **'ΓΊΓ Use a domain with some history** β More likely to be trusted by inbox providers
- **'ΓΊΓ Build slowly with clean content** β Helps you avoid spam folders and throttling
- **'ΓΉΓ₯ Send bulk emails from a brand-new domain** β Likely to get blocked or flagged
- **'ΓΉΓ₯ Ignore engagement rates and complaints** β 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.
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