Domain Management
To send emails with Zeabur Email, you need to verify your sender domain first. Domain verification ensures that you own the domain and improves email deliverability.
Why Domain Verification is Required
Unverified domains cannot be used to send emails. Domain verification improves email credibility through DKIM, SPF, and DMARC records.
- Prevent Spoofing: Ensure only domain owners can send emails from that domain
- Improve Deliverability: Verified domains are more likely to pass spam filters
- Brand Protection: DKIM signatures protect your brand from phishing attacks
Adding a Domain
Log in to Console
Visit the Zeabur Email management page in the Zeabur console.
Add New Domain
- Go to “Domain Management”
- Click “Add Domain”
- Enter your domain (e.g.,
yourdomain.com) - Select the sending region (recommended to choose one close to your users)
Configure DNS Records
The system will automatically generate the DNS records you need to add and display them on the console page. Please add these records at your DNS provider (e.g., Cloudflare, Aliyun, Tencent Cloud) according to the page instructions.
Types of records you need to add:
- DKIM Records (usually 3): Used for email digital signatures to prove email authenticity
- SPF Record: Specifies which servers are authorized to send emails from your domain
- DMARC Record: Defines handling policy when email authentication fails
- MX Record (optional): Used to receive bounce notifications
Wait for Verification
After adding the DNS records, click the “Verify” button in the console. Zeabur Email will automatically check your DNS configuration.
Verification usually takes 5-30 minutes, depending on your DNS provider’s propagation time.
When the console shows the domain status as verified, verification is successful and you can start using this domain to send emails!
DNS Records Explanation
To ensure emails are delivered successfully, Zeabur Email uses the following standard email authentication technologies:
DKIM (Email Digital Signature)
DKIM adds a digital signature to each email, proving the email truly comes from your domain and preventing email tampering or forgery. Usually requires adding 3 DKIM CNAME records.
Purpose:
- Prevent email forgery
- Improve email deliverability
- Protect your brand reputation
SPF (Sender Server Authorization)
SPF records specify which servers are authorized to send emails on behalf of your domain, preventing malicious third parties from impersonating your domain.
Purpose:
- Prevent domain impersonation
- Reduce false spam classifications
If your domain already has SPF records configured elsewhere (such as Google Workspace, Microsoft 365), please contact the support team for help to avoid conflicts.
DMARC (Email Authentication Policy)
DMARC defines handling policy when email authentication (SPF or DKIM) fails, helping you monitor and protect your domain from abuse.
Purpose:
- Receive authentication failure reports
- Prevent phishing attacks
- Improve domain credibility
MX Record (Optional)
MX records are used to receive bounce notifications, helping you understand why email sending failed.
Purpose:
- Receive bounce notifications
- Detect sending issues promptly
Verification Status
Domains can be in the following states:
| Status | Description |
|---|---|
pending | Waiting for verification, DNS records not yet configured |
verifying | Verifying DNS records |
verified | Verified, ready to use |
failed | Verification failed, please check DNS configuration |
Common Questions
How long does it take for DNS records to take effect?
Usually between 5 minutes to 48 hours, depending on your DNS provider. It’s recommended to wait 15-30 minutes before attempting verification.
What if verification fails?
- Wait longer: DNS propagation usually takes 5-30 minutes, some DNS providers may need longer (up to 48 hours)
- Check DNS configuration: Confirm you’ve added the records exactly as shown in the console, without extra spaces or quotes
- View error messages: Zeabur Email console will show specific verification errors, please modify according to the prompts
- Contact support: If verification continues to fail, please contact the Zeabur support team for help
Can I use subdomains?
Yes! You can verify subdomains (like mail.yourdomain.com), which allows you to:
- Separate different types of emails (marketing vs transactional)
- Better control domain reputation
What indicates successful verification?
When the Zeabur Email console shows the domain status as verified, it means all DNS records have been correctly configured and passed verification. You can immediately start using this domain to send emails.
Deleting Domains
If you no longer need a domain:
- Go to “Domain Management”
- Find the domain to delete
- Click the “Delete” button
- Confirm deletion
After deleting a domain, API calls to send emails from that domain will fail. Make sure no applications are using this domain.
Best Practices
Use Dedicated Subdomains
It’s recommended to use a dedicated subdomain for email sending (like mail.yourdomain.com), which allows you to:
- Protect main domain reputation
- Easier tracking and management of emails
- Separate different types of emails (e.g., marketing emails, transactional emails)
Avoid Frequent DNS Changes
After successful domain verification, do not randomly modify or delete DNS records, otherwise it may cause email sending failures or emails being marked as spam.