Forum Discussion
Exchange hybrid - on-premise mailbox issue
Hi Guys, I have a problem with mailbox that is located in on-premise Exchange 2019. I'm using hybrid mode with 99% mailboxes located in EXO. Let's name this mailbox: "Mailbox1". Mailbox1 have...
The bounce back is returned when the recipient address isn't available on the server where your MX is pointing to.
Please confirm if the 4 SMTP addresses on Mailbox 1 are of the same domain name.
Please confirm if there are other working mailboxes (Mailbox 2, mailbox 3) with address like the affected domain name on Mailbox 1
I look forward to your response in order to advise further.