Posted by: kurtsh | May 3, 2026

RELEASE: High Volume Email (HVE) generally available

High Volume Email (HVE) is now generally available in Exchange Online, allowing organizations to send large volumes of internal email (for scenarios where email in excess of 10,000 total to any internal recipients per day is required) without hitting recipient rate limits or risking service health issues associated with user mailboxes.

It delivers a purpose‑built, tenant‑native way for applications and devices to send large volumes of internal email reliably, securely, and at scale without impacting user mailboxes or Exchange Online service health.

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High Volume Email is designed specifically for transactional and operational messaging, not marketing campaigns. It does not include campaign tooling, templates, or engagement tracking. Instead, it supports the high‑trust, high‑reliability use cases that organizations depend on every day.

Common scenarios include:

  • Payroll and HR system notifications
  • IT monitoring and service alerts
  • Business and line‑of‑business application messaging
  • Device‑driven workflows, such as printers and scanners
  • Security and compliance notifications

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High Volume Email is now generally available in Exchange Online for sending email to internal recipients. Usage will be metered starting June 1, 2026 based on the number of expanded email recipients, with pricing set at $42 per one million recipients through Microsoft commerce (equivalent to $0.000042 per one recipient). This is a pay-as-you-go configuration using billing policies in the Microsoft 365 Admin Center.

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