Compound AI OpsFOUNDER X8 September 2026
Outlook SafeLink rejections inflated our PostHog software error count
Outlook SafeLink rejections inflated our PostHog software error count
Outlook SafeLink made our error board look like people were hitting failures in our software. The count measured everything PostHog received, including Outlook's own link-check rejections. what reaches the error board An Outlook SafeLink rejection: A ResizeObserver loop notice: A React error numbered 419: An error produced by a person: An error from a CUBOT phone: The board now keeps software errors from people while removing link-check and browser noise before PostHog counts it.