Features/Deliverability

Email design engineered for maximum inbox placement

Deliverability starts at the template level. Mailofly analyzes your code size, image weights, and spam score before you dispatch a single message.

<100KB

Payload size target

99.8%

Average inbox placement

Gmail clipping risks

Capabilities

Engineered for developer velocity

Size optimization

Automatically minifies CSS and inlines styles to prevent Gmail's 102KB truncation limit from hiding your unsubscribe link.

Reputation shield

Real-time ratio analysis flags image-heavy layouts that trigger ISP spam filters and promotional tabs.

Link security

Verifies SSL certificates and domain reputation across all embedded URLs before dispatching campaigns.

Workflow

Run your email template through Mailofly's real-time deliverability diagnostic linter.

Minify payload size, optimize image tags, and clean up HTML syntax with automated suggestions.

Deliver messages knowing your layout complies with Gmail, Yahoo, and Outlook deliverability guidelines.

Platform

Build stunning, responsive transactional emails in minutes with tested components for receipts, alerts, onboarding, and invitations.

Inject order details, personalized greetings, and conditional blocks with intuitive Handlebars-style variable syntax.

Deliver tailored multilingual emails, currency formats, and right-to-left layout orientations automatically based on recipient locale.

Join thousands of engineering teams delivering transactional and lifecycle email with blazing speed and zero downtime.