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January 25, 2022

Exchange federated calendar sharing issue

March 3, 2017 Peter Klapwijk 11

Last week I started the setup of an Exchange 2010 Hybrid configuration at a customer, to start a pilot with Office 365/ Exchange Online. The Office 365 Hybrid configuration run without any issues. We did […]

Exchange Error: 550 5.1.1 RESOLVER.ADR.ExRecipNotFound

February 27, 2017 Peter Klapwijk 11

Sometimes you have a reason to restore a mailbox from back-up, because it was deleted by mistake or a former employee is hired again. But after restoring the mailbox, several (internal) users are not able […]