Connecting a custom email domain allows you to send employee communications from your own branded address (e.g. people@yourcompany.com) instead of a generic sender. This helps build trust, improve deliverability, and create a more cohesive employee experience.
This guide walks you through adding, verifying, and managing a custom sender domain in Pyn.
Why set up a custom domain?
With a verified custom domain, you can:
Send messages from your company’s email address
Improve email deliverability and trust
Maintain consistent branding across employee communications
Set a default sender for automated flows
Once verified, you’ll be able to use that domain across onboarding, milestone messaging, manager nudges, and more.
Step 1: Add a Custom Domain
Go to Settings → Integrations → Available
Click Email
Click the "..." menu and then Add Custom Domain
Enter your domain (e.g.
mail.yourcompany.com)Click Add
When you add the domain, Pyn will generate DNS records through SendGrid for verification.
Step 2: Add DNS Records
After adding your domain, you’ll see several DNS records that need to be configured.
These records typically include:
CNAME entries
Host values
Target values
To complete this step:
Copy each DNS record provided in Pyn
Go to your domain provider (e.g. GoDaddy, Cloudflare, etc.)
Open your DNS settings
Paste the values exactly as shown
Save each record
💡 You’ll usually need to add three DNS records. DNS records tell the internet which services are authorized to send email on behalf of your domain. Without this step, verification will fail.
Step 3: Request Verification
Once your DNS records are saved:
Return to Pyn
Open the domain you just added
Click Request Verification
Pyn will check the DNS records via SendGrid.
What to expect:
If records are missing or incorrect, you’ll see validation errors.
If some records are correct, you may see partial success.
Once all records are properly configured, the domain status will update to Verified.
⏳ Note: DNS changes can take a few minutes to propagate. If verification fails, wait a few minutes and try again.
Unverified Domains
If verification fails:
You’ll see an Unverified status.
Pyn will display the required DNS values again for reference.
You can recheck your DNS provider and try verification again.
A domain must be fully verified before it can reliably send email.
Set a Default Sender
Once a domain is verified, you can:
Mark it as Default
Use it across automated flows and campaigns
Only verified domains should be set as default to ensure reliable delivery.
Delete vs. Archive: What’s the Difference?
When managing domains, you have two options:
Archive (Recommended)
Removes the domain from active use in Pyn
Keeps it in SendGrid
Acts as a “soft delete”
Preserves verification settings
Best for temporary deactivation.
Delete (Permanent)
Deleting a domain will:
Remove it from Pyn
Fully delete it from SendGrid
Remove all associated verification records
You’ll see a confirmation warning before deletion.
⚠️ Deleting is permanent. If you re-add the domain later, you’ll need to complete verification again.
Troubleshooting
Verification failing?
Double-check that all DNS records are added exactly as shown.
Confirm there are no typos or extra spaces.
Wait a few minutes and try again (DNS propagation can take time).
No default sender selected?
If you delete your default domain, you’ll need to assign a new verified domain as default.