We are happy to announce our work to allow you to disable legacy authentication is available to you with the second cumulative update (CU2) for Exchange 2019. This provides an important step down the...
Updated Jul 01, 2019
Version 2.0
Blog Post
Greg Taylor - EXCHANGE The_Exchange_Team I opened a support case. They said they don't have a lot of experience with this... they're currently trying to ascertain if round robin DNS works for this... Should round robin DNS work as a front-end load balancing solution with legacy auth disabled at the org level?
I took memory dumps of a couple of the duplicate key exceptions but support says that they can't do anything with the dumps and they don't want them... I tried using windbg and SOS to figure it out on my own but without the symbols or source it's proving to be rather challenging for me... I don't think I'm going to get very far with support. They're saying we might just have to migrate all our mailboxes to the cloud... any help would be appreciated. Thanks!