Replyallpocalypse breaks the NHS’s email system
thenextweb.com
Don't you hate it when a colleague accidentally sends an email to the entire company, only for some dickhead to hit "reply all?"
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The original was posted on /r/todayilearned by /u/zahrul3 on 2025-08-05 03:26:16+00:00.

Original Title: TIL: Someone at the National Health Service in England sent a test email to 840000 colleagues and another replied all, resulting in one of the largest reply all storms. 168 million emails were sent between people and caused the health system to be down for half a day.