Sending domain

By default, every affiliate-facing email Rekomi sends (invitations, payout notifications, monthly summaries) is sent from noreply@rekomi.com. That works, but it has two costs: affiliates may flag it as unfamiliar and inbox placement is tied to Rekomi's shared sending reputation.

A custom sending domain solves both. Verify a sub-domain you own and Rekomi will send those emails from your domain with full DKIM/SPF/DMARC alignment. The brand keeps using Rekomi's underlying email infrastructure (Resend); only the visible sender changes.

Before you start

You need:

• A sub-domain you control (e.g. partners.yourbrand.com). We recommend a sub-domain rather than the apex (yourbrand.com) so this setup never collides with email your team already sends.
• DNS provider access (Cloudflare, Route 53, Namecheap, GoDaddy, etc.).
• About 15 minutes for DNS propagation.

You do not need:

• A Resend account. Rekomi pays for the underlying sending; this is included with your Pro plan at no extra cost.
• A dedicated sending IP. Wave 1 uses Resend's shared sending pool.

Connect your sender domain

1. Open Settings → Email sender in the Rekomi dashboard.
2. Enter the sub-domain you want to send from (e.g. partners.yourbrand.com).
3. Enter the sender name your affiliates will see (e.g. Yourbrand Affiliate Campaign).
4. Optionally set a reply-to address. When omitted, replies go to your account's billing email.
5. Click Register sender domain.

Rekomi creates a domain entry in Resend and returns a small set of DNS records you need to add.

Add the DNS records

The records include:

• DKIM (CNAME or TXT). Cryptographically signs your outbound mail.
• SPF (TXT). Tells receivers that Rekomi's sending infrastructure is authorized.
• DMARC (TXT). Defines policy when DKIM or SPF fails.

Copy each record's name and value into your DNS provider. Set TTL to "Auto" or 300 seconds.

Most DNS providers strip the trailing dot on the record name. Both forms work.

Verification

After you add the records, click Check now in the Rekomi dashboard. Rekomi asks Resend to re-check DNS and shows the result.

DNS propagation usually takes 5 to 15 minutes. Rekomi automatically polls every 30 seconds while the verification is pending, so you can leave the page open.

Once Resend confirms every record, the status flips to Verified and the dashboard shows a preview of how the From header will look to affiliates.

What gets sent from your domain

After verification, every affiliate-facing email goes from your domain:

• Affiliate invitations
• Payout sent notifications
• Payout failed notifications
• Monthly summary emails
• Welcome emails on accept

What still sends from rekomi.com

A small set of system emails continues to send from Rekomi:

• Sign-in flows (handled by Clerk, not Rekomi)
• Trial expiry warnings (sent to you, not affiliates)
• Billing notifications from Stripe (handled by Stripe directly)
• Legal / compliance notifications (when we need to reach you as an account holder, not as a brand)

This split is intentional: your sender domain is for emails to affiliates. Account-level emails to you stay on the Rekomi infrastructure so you can always reach support and we can always reach you.

Troubleshooting

Status stays Pending for more than 30 minutes

DNS propagation can take longer for some providers. Check the records directly with dig or nslookup:

dig TXT _dmarc.partners.yourbrand.com

If the records do not return, double-check they were saved in your DNS provider. Some providers require you to wait a few minutes between save and propagation.

Status flips to Failed

Resend's DNS check found a problem. Look at the Status column in the records table. Records showing "Failure" are the ones that need attention. Common causes:

• Record value was pasted with extra whitespace or quotes
• DNS provider added a leading _dmarc.partners.yourbrand.com.partners.yourbrand.com because it auto-appends the domain
• TTL set too high; lower to 300 seconds

After fixing, click Check now.

One record verified, another did not

Each record verifies independently. The domain as a whole only verifies when every record is confirmed. Check each row's status.

Disconnecting

To stop sending from your domain:

1. Open Settings → Email sender.
2. Click Disconnect.
3. Type DISCONNECT EMAIL SENDER to confirm.

The Resend domain entry is torn down and affiliate emails revert to sending from noreply@rekomi.com on the next send. You can reconnect later.

FAQ

Does this cost extra?

No additional fee. The sending domain feature is included in the Pro tier alongside full white-label removal (remove Rekomi branding). Note: the custom domain (first-party tracking plus the affiliate-portal subdomain) moved to Growth in May 2026 and is no longer Pro-only. Customer-facing webhooks moved to Starter+ in May 2026 and are no longer a Pro-only feature. Starter and Growth tiers see a Pro upgrade prompt on the settings page for the sending-domain feature specifically.

Can I use the apex of my domain (yourbrand.com)?

No. We require a sub-domain (e.g. partners.yourbrand.com or affiliates.yourbrand.com) so DKIM, SPF, and DMARC for your existing email do not collide with the Rekomi-sent affiliate mail.

What is the From address exactly?

<Your sender name> <noreply@<your-sub-domain>>. The local part is locked to noreply in v1; we may allow customization in a future release.

Can affiliates reply?

Yes. Replies go to whatever Reply-to you set during setup. If you left it blank, replies go to the billing email on your Rekomi account.

Will my domain reputation be affected?

Your domain inherits the deliverability characteristics of Resend's shared sending IPs. For 95% of brands this is a net improvement over the default. If you require dedicated IP isolation, that's a Wave 3 feature.

Can I send marketing campaigns from this domain through Rekomi?

No. Rekomi sends transactional email only (invitations, payouts, summaries). For broadcast / campaign email, use a separate marketing tool (Customer.io, Loops, etc.).