Branded, DKIM-authenticated email OTP delivery — with magic link support, responsive templates, and guaranteed inbox placement through Narvark's dedicated sending infrastructure.
Branded email templates, magic links, and dedicated sending infrastructure — so your OTPs never end up in spam.
Narvark sends your OTP emails from dedicated, warmed IP addresses — protecting your reputation and ensuring inbox placement even at high volume.
One-click email verification — users click a signed, expiring link to authenticate instantly, without manually entering a code. Reduces friction by up to 60%.
White-label email templates with your logo, colours, and copy — rendered perfectly across Gmail, Outlook, Apple Mail, and 50+ other clients via tested HTML.
All outgoing email is signed with DKIM and sent from SPF-authorised servers under your domain. DMARC reporting gives you full visibility into spoofing attempts.
Automatically localise OTP emails based on user locale. Narvark translates and formats code, expiry messaging, and CTA copy across 50+ languages.
Set code TTL from 5 minutes to 24 hours. Magic links are single-use and automatically invalidated after verification or expiry — no replay attacks possible.
Real-time webhooks for sent, delivered, opened, and clicked events. Build smart retry logic — if the email isn't opened within 60 seconds, auto-fallback to SMS.
If the email bounces, is blocked, or remains unopened beyond a timeout threshold, Narvark automatically re-sends via SMS — zero configuration required.
Hard and soft bounce handling built in — invalid addresses are flagged and suppressed automatically, protecting your sender reputation without manual cleanup.
Most email OTP providers send from shared IPs with no reputation management. Narvark's dedicated infrastructure and authentication stack ensures your codes land where they're needed.
auth.narvark.com and your custom subdomain — separate from your marketing email, so deliverability issues don't cross-contaminate.
Full authentication stack out of the box. Narvark handles DNS records, key rotation, and DMARC reporting automatically.
Narvark monitors sender reputation in real time — rotating IPs, adjusting send volume, and responding to blacklisting events before they affect delivery.
Every template is tested against major spam filters (SpamAssassin, Barracuda, Proofpoint) before sending — so your OTPs never trigger false positives.
Explore branded templates, magic links, and dedicated sending infrastructure with our team.