Mass Communications in Vello not sending to Microsoft email addresses

Incident Report for IDEXX Software

Investigating

We are currently investigating an issue where Vello Mass Communication emails are not sending to Microsoft email addresses (@live.com, @outlook.com, etc.). Other transactional emails such as reminders are still sending appropriately.

Posted Dec 23, 2025 - 11:50 EST

This incident affects: Vello (Neo Vello, ezyVet Vello, Cornerstone Vello).