Challenge

Tulleen needed reliable email delivery for order confirmations and promotional campaigns while protecting customers from spoofing attacks. With more than 3 million emails sent each month, spam-folder placement, phishing activity, DMARC alignment issues across subdomains, and recurring blacklisting from shared IP infrastructure were affecting customer trust and campaign performance.

Why Skysnag

Skysnag standardized authentication across Tulleen’s email ecosystem by aligning SPF, DKIM, and DMARC policies for 2 primary domains and 15 subdomains. The deployment also introduced dedicated IP infrastructure, SPF flattening, DKIM rotation, subdomain policy isolation, and real-time DMARC visibility.

Security value

 Eliminated phishing and look-alike attacks through enforced email authentication and continuous DMARC monitoring.

Operational value

Improved sender reputation and deliverability while simplifying authentication management across all sending domains.

Rollout model

The implementation focused on standardizing authentication, improving sender reputation, and increasing visibility into email security and deliverability.

Rollout steps

  1. Standardize authentication – Configured SPF, DKIM, and DMARC alignment across 2 primary domains and 15 subdomains.
  2. Migrate infrastructure – Moved email traffic from shared IPs to dedicated infrastructure to restore sender reputation.
  3. Enable continuous monitoring – Implemented DMARC visibility, SPF flattening, DKIM rotation, and subdomain policy isolation for ongoing stability.

Results and proof signals

Within 45 days, Tulleen significantly improved email performance while strengthening protection against email impersonation.

Results stats

98%

Inbox placement

63%

Spam reduction

Zero

Phishing incidents

Skysnag transformed our email channel from a business risk into a trusted customer touchpoint. Our emails consistently reach the inbox, our brand is protected from impersonation, and the Blue Checkmark gives customers greater confidence that every message is authentic.

Rabee Ikkawi – CEO, Tulleen

What this means for enterprise organizations

Organizations sending high volumes of transactional and marketing email can improve inbox placement while reducing spoofing risk by standardizing authentication, isolating sender reputation, and continuously monitoring DMARC across all sending domains.