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Trend Micro currently uses the trendmicro.com domain for the sender address for several service-related system emails such as support-advisorytrendmicro.com.
 

As part of a security enhancement for Trend Micro’s service-related email system, beginning on October 31, 2025, Trend Micro will be replacing the trendmicro.com domain with service.trendmicro.com in the sender addresses.
 

Some examples (but not limited to) of the updated sender addresses:

There is no specific required action on the customer end for this change, unless your organization currently employs automation or other types of handling rules for Trend Micro specific service emails. In this case, you will want to update these rules and/or automation to account for the updated sender domain addresses.
 

Users are advised to check their email filtering solutions after October 31, 2025, if expected emails from service.trendmicro.com are not being received.
 

If you have any questions or concerns, please feel free to contact your authorized Trend Micro support representative for further assistance.