Monday, 11 May 2020

Microsoft adds protection against Reply-All email storms in Office 365


Microsoft rolled out this week a new feature to Office 365 customers to help their IT staff detect and stop "Reply-All email storms".

The term refers to situations when employees use the Reply-All option in mass-mailed emails, such as company-wide notifications.

If the number of recipients in the email chain is large, and if multiple employees hit the Reply-All button, then the ensuing event generates massive amounts of traffic that usually slows down or crashes email servers.

Such events happen almost all the time, and, at one point or another, a company is going to have email servers go down because of employees participating and amplifying Reply-All storms as a prank.


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