verify your sender domain
set up SPF, DKIM, and DMARC for your domain so emails from iris land in inboxes, not spam folders.
steps
open settings → email domain
iris generates a personalized list of DNS records for your domain. they're specific to your account - don't copy-paste records from another tutorial.
add the records to your DNS provider
log into your DNS provider (Cloudflare, Namecheap, GoDaddy, Google Domains, etc.) and add each record exactly as iris shows it. there are typically three records: one for SPF, one for DKIM, and one for DMARC.
DNS providers often append your domain automatically. if iris says the host is `mail._domainkey`, don't paste `mail._domainkey.yourdomain.com` - the provider adds the domain for you.
wait for propagation
DNS changes can take anywhere from a few minutes to a few hours to propagate. iris will check the records automatically and flip the domain to 'verified' once they resolve.
send a test email
once verified, iris will let you send a test email to your own inbox before you activate any campaign. confirm it lands in the primary inbox (not spam) before running a campaign at scale.
why this matters
SPF, DKIM, and DMARC are the three signals inboxes use to decide whether an email is legitimate. without them, your messages from iris look unauthenticated and get routed to spam.
- SPF tells inboxes which servers are allowed to send mail on behalf of your domain.
- DKIM cryptographically signs each email so recipients can verify it wasn't tampered with.
- DMARC tells inboxes what to do if SPF or DKIM fail (typically: reject or quarantine).
iris doesn't ask you to give it your domain credentials. you add three records on your side; iris validates them on its side. if you ever stop using iris, the records sit there harmlessly until you remove them.
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