Set up a custom email sender
Last updated: November 10, 2026
By default, the emails your workflows and notifications send come from Nash's sender. The Email sender page lets you replace it with your own: the name your customers see in their inbox, a From address on a domain you control, and an optional Reply-to inbox. Once you activate it, one sender covers all of your organization's notification emails — no workflow or trigger changes needed.
Find it under Settings ▸ Email sender (/settings/email-sender).
Who can use this page
Owner and Admin can set up, test, activate, and switch the sender.
Operations can open the page and see the settings, but can't change them. The page says so at the top.
People whose access is scoped to specific locations or driver groups don't see the page.
What your customers see
Your sender identity has three parts:
Field | What it is |
|---|---|
Sender name | The name customers see in their inbox, up to 100 characters. |
From email address | The address the email comes from. It must be on a domain you control, because you verify that domain with DNS records. |
Reply-to email | Optional. Replies go to this inbox. Nash doesn't create or manage it, so use an inbox your team already reads. |
As you type, the In your customer's inbox panel previews how the sender appears. Only the sender changes — your templates and message content stay the same.
The active sender applies to:
Workflow emails — the Send an email action.
Immediate and delayed notifications — emails from your notification triggers, whether they send right away or at a scheduled time.
Inline messages and branded templates.
Emails Nash sends to you and your team about your account, such as sign-in and billing emails, aren't affected.
How setup works
The page walks you through three steps, tracked in the Sender readiness panel on the left:
Sender identity — enter the name and addresses.
Verify domain — add DNS records with your DNS provider and check them.
Activate & test — review the sender, send a test, and activate it.
Nash's sender (or your current custom sender) stays in use for the whole time you're setting up. Nothing changes for your customers until you select Activate sender.
1. Enter your sender identity
Go to Settings ▸ Email sender.
Fill in Sender name, From email address, and, if you want replies to reach your team, Reply-to email.
Select Save & get DNS records.
The page moves to Domain authentication and starts preparing records for the domain of your From address. While it works, you see Preparing your domain records. This can take a moment. If you see Domain setup is incomplete, save the sender again to retry.
2. Verify your domain
Verification happens in two rounds, and the portal shows the exact records to add in each. Copy every host and value from the portal — each one is generated for your organization and domain.
Prove you own the domain
The first record is a TXT record under Nash domain ownership. Its host is _nash-email-sender. followed by your domain.
Add the TXT record with your DNS provider, using the Host / name and Value / target shown. Each field has a copy button.
Back on the page, select Check records.
Once ownership is verified, the records for the two sending services appear.
Add the sending records
Two services send your email, and each needs its own records:
Amazon SES sends Immediate emails.
SendGrid sends Delayed emails — notifications scheduled for later.
Add every record listed under DNS records with your DNS provider. Some records show a Priority; enter that too.
Keep your existing email and DMARC records — these records go alongside them.
Select Check records.
To hand the records to whoever manages your DNS, select Download DNS records for a file with every record's type, host, value, and priority.
DNS changes can take time to appear. If a record isn't verified yet, wait and select Check records again.
Verification states
Each sending service shows a status badge, and each record shows its own status:
Status | Meaning |
|---|---|
Awaiting verification | Nash hasn't found the record yet. Add it, or wait for DNS to update, then check again. |
Domain verified | The record or service checks out. |
Verification needs attention | The check failed. Compare the record at your DNS provider with the host and value in the portal. |
The DNS records header counts how many records are verified, and the page shows Last successful verification with a date and time.
A successful check counts toward activation for up to 24 hours. If you come back later and see This candidate is not eligible for activation, select Check records again before you continue.
3. Test and activate
When the ownership record and both services are verified, select Review sender. The review shows Your domain is verified and the identity you're about to activate.
Send a test email
Select Send test email.
Enter the Test recipient — the mailbox that should receive the test.
Select Send test email in the dialog.
The test uses the prepared sender only; it doesn't activate it or change your current sender. When the test is accepted, the page names the recipient — check that inbox to confirm the email arrived and looks right.
Result | What to do |
|---|---|
Test accepted for recipient | Check that inbox to confirm delivery. |
The test email was rejected | Your active sender hasn't changed. Review the error, fix the setup, and try again. |
The provider could not confirm acceptance | Check the inbox before sending another test — another test may send a second email. |
The test may have been accepted or is still in progress | Don't send another test yet. Select Check test result to see the outcome. |
The test dialog relies on your browser's storage to recover a test result if the page loses its connection. If browser storage is turned off, the page asks you to enable it before you send a test.
Activate the sender
Select Activate sender. New workflow and notification emails use your sender from then on. The page switches to Your active sender.
Emails already queued keep the sender they were submitted with.
Change your sender
To change the name, From address, or Reply-to, open Your active sender and select Edit sender. Saving a changed identity prepares a replacement: your active sender stays in use while you verify and test the new one, and the Current sender card shows what's sending in the meantime. Nothing switches until you select Activate sender for the replacement.
After you save, check the records again so the replacement is verified before you activate it. A new From domain needs its own DNS records.
Switch back to Nash's sender
On Your active sender, select Use Nash sender.
Confirm Use Nash sender in the dialog.
New emails come from Nash. Emails already queued keep their submitted sender, and your domain setup is kept, so you can activate your sender again later without redoing DNS.
Where you see the sender elsewhere
The Send an email action in the workflow builder and the notification trigger drawer both show an Organization email sender panel with the current sender name, From address, and Reply-to. Those emails use the organization sender when they're sent, so there's nothing to set per workflow or trigger. View email sender settings opens this page.
Troubleshooting
What you see | What it means |
|---|---|
Your sender needs attention | Your custom sender is no longer verified — for example, a DNS record was removed or changed. New emails use Nash's sender until you fix the records, select Check records, and select Activate sender again. A passing check alone doesn't resume your sender. |
We couldn't check your domain records | The check itself didn't complete. Your last verification result stays as it was. Try again. |
This identity differs from the prepared sender | You edited the form after saving. Select Save & get DNS records before you test or activate. |
Custom sender setup is unavailable | Custom senders aren't set up for your environment. You can still see your sender details and switch to the Nash sender. Reach out to Nash. |
Sender settings changed | The sender changed after you loaded the page. Refresh and review the latest version before you continue. |
A From domain can belong to only one Nash organization. If setup won't proceed for a domain your organization owns, reach out to Nash.
Related
Settings overview — everything else in Settings.
How customer notifications work — the triggers and destinations these emails come from.
Workflow actions reference — the Send an email action.
Manage users and roles — which roles can manage organization settings.