Microsoft launches Microsoft 365 "bulk email" preview, can send to 100,000 internal recipients per day

Microsoft 365 announced the public preview of High Volume Email (HVE), a service for portfolios that send large amounts of internal email. The service is designed to provide users with the components and services needed to send large amounts of email, supporting more efficient, reliable and secure email delivery.

HVE bypasses the limitations of regular Exchange Online mailboxes and allows bulk email traffic from line-of-business applications and devices, Microsoft said.

Starting on April 1st, Microsoft will launch HVE to all WW customers, and is expected to be fully launched by the end of April. HVE will initially be available to users in North America, with plans to roll out to more regions in the coming months.

HVE provides administrators with more flexible control rights, removes the limit on the number of emails sent, and limits the number of internal recipients. No restrictions are made. Please note that Microsoft stated that HVE plans to introduce a usage-based billing model in the future.

The service is free to use during the preview period, but it can only send to 100,000 recipients per day. Only 20 HVE accounts can be created per tenant during the preview period, and sending to external recipients is limited to 2,000 per day. The service currently uses basic SMTP authentication, and will support OAuth authentication later.

Service Information

• Server/Endpoint: smtp-hve.office365.com

• Port :587

• TLS: Start TLS

• Authentication: Username and Password

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