Onemails

Built for performance

A deep dive into the engineering that powers your campaigns.

Never worry about messy data again

Intelligent Audience Management

Import your contacts in seconds. Our engine automatically deduplicates records, validates MX records in real-time, and flags invalid syntax before you ever hit send, protecting your sender reputation.

  • Drag-and-drop CSV upload
  • Automatic deduplication
  • Real-time MX record validation
  • Custom tagging and segmentation

Send at the perfect moment

Smart Campaign Scheduling

Don't guess when your users are online. Use our Smart Send feature to automatically deliver emails when individual users are most likely to open them, based on historical engagement data.

  • Timezone-aware sending
  • Send-time optimization (Machine Learning)
  • Recurring campaigns
  • Throttle sending limits

Know exactly what happens to your emails

Granular Analytics & Logs

Go beyond open rates. We store the complete SMTP transaction log for every single email you send. If an email bounces, you'll know exactly why, down to the provider's error code.

  • Real-time dashboard
  • SMTP transaction logs
  • Link click tracking map
  • Automated weekly reports