[jabroni_salad]

Not just cost, they are also allergic to things like mailbox quotas and maximum attachment sizes. Everybody wants to shoot 25+MB attachments at each other and store it in their mailboxes and then summon it from a search 5 years later. Microsoft has recognized this customer demand and it's something m365 does pretty well. Your onprem PST gets corrupted if you sneeze at it but microsoft will let you have a 100GB mailbox with 1.5TB archive on their service and you'll never lose anything or suffer a slowdown.

[MichaelZuo]

> ... but microsoft will let you have a 100GB mailbox with 'unlimited archive' on their service and you'll never lose anything or suffer a slowdown.

Seems unlikely that will actually be the case if even plain emails are being silently dropped without notice just by have a certain url in them.

Much better to have it on premises, and actually get notified when emails are mysteriously dropped.

[jabroni_salad]

oh my bad. I'll turn the spam filter off for your address. let me know if there's anything else I can do and be sure to rate this interaction 5 stars.

I actually do think this is an ATP issue. I've had a few premier cases for it and the guys manning the desk at microsoft dont know how to deal with it. We always have to get a japanese speaker to raise the case in that langauge because the JP support guys are way better than the english.

[MichaelZuo]

The problem is that no decision maker at Microsoft is actually going to promise in writing that even 99.9999% of the email data will be retained, and does not somehow mysteriously vanish, no matter how much money you spend with them. Let alone an actual 100%.

So it's pointless to make such a claim that no one at Microsoft HQ even approximately believes.