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Domains

Configure your sending domains to ensure reliable email delivery from graph8.

Adding a Domain

Connect a domain you own to use it for outbound email.

  1. Go to Settings → Domains
  2. Click Add Domain
  3. Enter your domain name (e.g., outreach.yourcompany.com)
  4. graph8 generates the required DNS records
  5. Add the records to your DNS provider
  6. Click Verify

Using a subdomain (like outreach.yourcompany.com) is recommended to protect your primary domain’s reputation.

DNS Records

graph8 requires three types of DNS records for email authentication:

SPF (Sender Policy Framework)

Tells receiving mail servers that graph8 is authorized to send email on your behalf.

  • Record type: TXT
  • Host: your sending domain
  • Value: provided by graph8 during setup

DKIM (DomainKeys Identified Mail)

Adds a cryptographic signature to outbound emails, proving they haven’t been tampered with.

  • Record type: CNAME or TXT
  • Host: selector provided by graph8
  • Value: provided by graph8 during setup

DMARC (Domain-based Message Authentication)

Tells receiving servers what to do with emails that fail SPF or DKIM checks.

  • Record type: TXT
  • Host: _dmarc.yourdomain.com
  • Value: your DMARC policy (graph8 provides a recommended starting policy)

Verification

After adding DNS records, click Verify to check that everything is configured correctly.

Verification Statuses

  • Verified — all DNS records are correct and active
  • Pending — records are added but DNS propagation is in progress (can take up to 48 hours)
  • Failed — one or more records are missing or incorrect

Troubleshooting

If verification fails:

  • Confirm records are added to the correct domain/subdomain
  • Check for typos in record values
  • Wait for DNS propagation (up to 48 hours)
  • Verify your DNS provider doesn’t strip or modify record values

Domain Health

Once verified, graph8 monitors your domain’s sending reputation.

Health Indicators

  • Reputation Score — overall sending reputation
  • Bounce Rate — percentage of emails bouncing
  • Spam Complaints — reports from recipients
  • Warmup Status — whether the domain is still in warmup

Warmup

New domains start with a warmup period where sending volume gradually increases. This builds a positive reputation with email providers.

  • Warmup runs automatically when enabled
  • Sending limits increase gradually over the warmup period
  • graph8 manages warmup email volume and pacing

Frequently Asked Questions

Should I use my primary domain or a subdomain?

Always use a subdomain for outbound sales email. This protects your primary domain’s reputation. If the sending subdomain’s reputation drops, your main company email isn’t affected.

How long does DNS propagation take?

Most DNS changes propagate within a few hours, but it can take up to 48 hours. If verification fails, wait and try again.

Can I add multiple domains?

Yes. Add as many sending domains as you need. Each domain requires its own DNS records and verification.

What happens if my domain health drops?

graph8 alerts you when reputation metrics decline. Reduce sending volume, review your contact lists for invalid addresses, and check that your email content follows best practices.

Tip: Monitor domain health weekly and address issues early before they impact deliverability.