Hello, I'm trying to send a message from outside to a known e-mail address but am coming across a 550 5.1.1 ... User unknown error message.
Emails to another mailboxes of the same domain receiving without any issues. AD user of this mailbox is not locked and disabled.Mailbox is not full. Receiving emails from internal users working. Please assist
More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center.
Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center.
Navigate to the Servers >> Certificates…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync.
To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…