Sending Emails from Your Domain

By default, Suppli sends emails to your customers from our shared domain. With a custom sending domain, those emails come from your address instead — like billing@mail.yourcompany.com — improving deliverability and reinforcing your brand.

You'll need access to your company's DNS settings (usually managed through your domain registrar like Cloudflare, GoDaddy, or Namecheap — or your IT team). The process takes about 10–15 minutes, plus some time for DNS to propagate. You can learn more about these steps below:

• How to Add DNS Records to Namecheap

• How to Add DNS Records to GoDaddy

• How to Add DNS Records to Cloudflare

Subdomain recommended: We strongly recommend using a subdomain like mail.yourcompany.com rather than your root domain. This protects your main email (Google Workspace, Outlook, etc.) from any interference and follows industry best practice.

Reach out to us with the sending domain you'd like to use (e.g. mail.yourcompany.com) and the address prefix for the address — typically something like billing, invoices, or notifications. We'll register it on your behalf and send you the DNS records to add in the next step.

We'll provide you with 5 DNS records to add to your domain registrar. Your IT resource or website developer will know how to do this. Here's what each record does:

Allow time for propagation: DNS changes usually take a few minutes to a few hours to take effect. In rare cases it can take up to 48 hours.

Once you've saved all 5 DNS records, let us know and we'll verify your domain. We'll confirm once it's active.

Once verified, your customer-facing emails will go out from your domain automatically. No further changes needed on your end.

Only emails sent to your customers use your custom domain. Internal emails to your team and certain system emails remain on Suppli's domain.

• Invoice notifications and reminders

• Payment confirmations and receipts

• Statement emails

• Payment plan notifications

• Lien waiver requests and confirmations

• Dispute notifications

• Credit application status updates

• Customer portal invitations

• Password reset emails for your customers

• Emails to your internal team and staff

Why do password reset emails still show Suppli? Password resets go through a separate authentication system that isn't connected to the custom domain feature. Since customers are resetting access to a Suppli-hosted portal, seeing Suppli as the sender is the expected and correct behavior.

Using a subdomain like mail.yourcompany.com keeps your transactional email reputation separate from your main business email. If anything goes wrong with deliverability, it stays isolated to the subdomain — your regular email at yourcompany.com is unaffected. It also avoids conflicts with your existing DNS records (Google Workspace, Outlook, etc.) and is the approach recommended by all major email providers.

Any of these work — the choice is purely cosmetic: mail.yourcompany.com, email.yourcompany.com, send.yourcompany.com, or notifications.yourcompany.com. The subdomain you choose needs to be dedicated to email sending and not used for anything else.

Most domains verify within a few minutes of DNS records being added. In some cases it can take a few hours depending on your DNS provider. We'll confirm with you once it's done.

This usually means a DNS record was accidentally removed or changed. Contact Suppli support and we'll diagnose the issue and get you back up and running. Until it's resolved, emails will continue to send from Suppli's default domain so nothing is interrupted.

Technically yes, but we don't recommend it. Your existing email setup (Google Workspace, Outlook, etc.) uses DNS records at the root domain, and adding ours could conflict with those — potentially affecting your regular business email. We'll walk you through the trade-offs if you'd like to go this route.