Can Two Microsoft 365 Tenants Share Mail Flow During a Partial Migration?
Our company is merging with another organization, but only some users are moving to a new Microsoft 365 tenant. Half of the mailboxes will remain in the old…
mailbox migration
Exchange mailbox can receive mail but cannot send or open in OWA
One on-premises Exchange user can receive email normally, but Outlook fails whenever they send or reply with the error: "None of your email accounts could send to this…
One Exchange mailbox can receive mail but cannot send or open in OWA
One user on an on-premises Exchange server can receive email, but Outlook fails whenever they try to send or reply with the message: "None of your email accounts…
Hybrid mailbox migration still limited to 50 GB with Business Standard
I'm trying to move an on-premises Exchange mailbox to Microsoft 365 using a Business Standard license. The mailbox is larger than 50 GB but under 100 GB, and…
What should I plan for when migrating a hybrid Exchange 2016 environment to Exchange Server SE?
I'm preparing to migrate a hybrid on-premises Exchange 2016 environment to Exchange Server Subscription Edition and want to identify the major prerequisites, risks, and lessons learned before starting.…
How to Automate Onboarding with Delays in Mailbox Creation?
Hey everyone, I'm wondering if anyone has successfully automated their onboarding process using custom scripts and tools they've developed in-house. I'm specifically facing challenges with a three-step process:…
How Can I Manage Shared Mailboxes Between Exchange Online and AD?
I'm trying to clean up my shared mailboxes after migrating them to Exchange Online. A few years back, we moved all our mailboxes from on-prem Exchange to Exchange…