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0 pointsejdyksen9y ago0 comments

This feature exists in Exchange! It's called MailTips. It warns senders in Outlook and Outlook Web App before sending of a number of conditions (including sending to a "large audience").

I was the PM who owned MailTips when it was created/introduced, and our research at the time showed it would be effective for preventing reply-all storms.

Implementing this is, of course, harder than you think. The size of groups has to be calculated nightly and distributed to every server, since groups can be nested (and have duplicate recipients).

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4 comments · 1 top-level

johansch9y ago· 3 in thread

There you go. :)

So this is what it feels like to predict the past...

I found that it's enabled and configured to 25 by default. https://technet.microsoft.com/en-us/library/jj649091%28v=exc...

(Nice url.)

I was assuming the NHS runs on Microsoft. Does anyone know?

xapata9y ago

It's funny how often it seems like software authors have a time machine. As soon as you get frustrated enough to make a feature request, they go back in time to implement it and pretend like it was always available.

johansch9y ago

From my own experience: Once you reach an audience in the hundreds of millions you're bombarded with edge cases issues daily..you just chose to prioritize addressing them or not.

That they make it to the mainstream, which in this case caused us to have this specific conversation is very unusual and can take a lot of time.

desas9y ago

yes it runs on exchange/ outlook and outlook web access

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