Setup walkthrough · ~3 minutes

Wire up your domain.
Once.

STEP 02 / 05

Add your domain.

Tell arc which domain you own. We don't need access to your registrar — just three DNS records on the next step.

Add DNS records.

Add MX, SPF, and DKIM records at your registrar. Most apply within minutes; some take up to an hour.

We verify them.

arc pings your DNS every 30 seconds. You'll see the verification status here in real time.

Create your first alias.

Create the first alias on your domain — say, hello@. Point it at the inbox you actually read.

Send a test.

Send an email from any account. It should land in your real inbox within a couple seconds.

New domain
Enter the apex domain (e.g. you.dev), not a full address.
◇ HEADS UP
arc handles forwarding only — you'll keep using whatever inbox you already use (Gmail, Fastmail, etc.) for sending.
you.dev · DNS zone
ZONE
@                IN MX   10 mx1.arc-relay.com.
@                IN MX   20 mx2.arc-relay.com.
@                IN TXT  "v=spf1 include:_spf.arc-relay.com ~all"
arc._domainkey   IN TXT  "v=DKIM1; k=rsa; p=MIGfMA0GCSqG…"
_dmarc           IN TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]"
Checking you.dev Polling every 30s
MX
mx1, mx2 → arc-relay.com
OK
SPF
include:_spf.arc-relay.com
OK
DKIM
arc._domainkey published
OK
DMARC
p=quarantine, rua set
PENDING
New alias
hello @you.dev
AI Auto-Reply
Drafts wait in your inbox before sending.
Listening for inbound
2026-04-28T14:23:01Z · arc-edge-iad-04
↓ MAIL FROM: [email protected]
  RCPT TO: hello@you.dev
  size=2.1kb · spf=pass · dkim=pass
↑ FORWARDED → [email protected] (38ms)
◇ ALL SET
You're live.
Add more aliases, set up routing rules, or calibrate AI Auto-Reply from the dashboard.