Sending domains & authentication
Add and verify dedicated sending domains with live SPF, DKIM, and DMARC checks, so mailbox providers trust your mail.
Features / Email deliverability, built in
FeatureEmail deliverability, built in
Deliverability is not an add-on. Zeluto gives you dedicated sending domains, provider fallback, and authentication health in one workspace so your campaigns land.
Why it matters
The best campaign in the world is worthless in the spam folder. Deliverability is the difference between effort and results — and it is too important to leave to a shared platform where your reputation depends on strangers.
What you get
Provider fallback
Pin a provider per campaign and fall back automatically if one degrades — no single point of failure between you and the inbox.
Suppressions & health
Automatic suppression of bounces and unsubscribes, plus a delivery-health view that flags problems before they hurt your sender reputation.
Launch preflight
A readiness check confirms your domain is verified and a provider is active before a campaign can send — no surprise failures at launch.
Frequently asked questions
What affects email deliverability?
Authentication (SPF, DKIM, DMARC), sender reputation, list hygiene, engagement, and content all affect whether your mail reaches the inbox. Zeluto manages the technical pieces and surfaces health so you can act early.
Do I need a dedicated sending domain?
For anything beyond casual sending, yes. A dedicated sending domain means your reputation is yours to build and protect, not shared with strangers on a common platform.
How does provider fallback work?
You can pin a sending provider per campaign, and if one degrades, Zeluto can fall back automatically — so a single provider problem does not stop your mail.
Part of the all-in-one Zeluto platform — see pricing or read How to improve email deliverability.