Forum Discussion
satya mahapatra
Feb 08, 2023Copper Contributor
hybrid user not able to send to single office365 mailbox
i have hybrid onprem user mailbox who not able to sent only one office365 mailbox user, that on prem mailbox user able to send rest of office365 mailbox user.
I am getting error Remote Server retu...
Kidd_Ip
Feb 09, 2023MVP
Please verify your DNS setup, internal DNS as well