100% open-source email infrastructure

Email Threat Protection Service

Advanced email threat protection against phishing, malware, and ransomware with real-time detection, automated response, and comprehensive security for all.

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Time to Inbox

Time to Inbox

We measure these delivery times with our own open-source monitor. It sends test emails to inboxes at major email providers and records how long each one takes to arrive. Our engineers get an alert when a delivery takes longer than 10 seconds. Source code is available on GitHub.

Last updated on 10/9/26 7:14 PM UTC

Current Delivery Times

  • Forward Email

    Direct
    904ms
    Forwarding
    5.4s
  • Gmail

    Direct
    1.1s
    Forwarding
    1.6s
  • Apple iCloud

    Direct
    4.5s
    Forwarding
    4.8s
  • Yahoo/AOL

    Direct
    2.4s
    Forwarding
    2.5s