#Outlook 2016 cannot send draft full#

Try sending the message again later, or contact your network administrator. The following recipient(s) cannot be reached: Your message did not reach some or all of the intended recipients. I compared the output of Get-Mailbox and Get-RecipientPermission for the new problem shared mailbox and an older shared mailbox (which enable users to send mail send-as from outlook just fine) but I couldn't find any differences.ДЇor your information, that's the error we get back immediately after trying to do a send-as for the new shared mailbox: This only happens for that newly created mailbox.

However, for a recent new shared mailbox/security group combination, when a user that's member of the related security group wants to send an e-mail from the shared mailbox (by changing the from field in Outlook and selecting the shared mailbox from the global address list), Outlook tries to send every time 'send-on behalf'. That has been working flawlessly for the last years. We create every new shared mailbox/security group combo using Powershell.

#Outlook 2016 cannot send draft full#

By adding users to security group A, they have full access to the shared mailbox. We give full mailbox permissions and send-as permissions for that particular security group onto the shared mailbox.ДЇor example, security group A has full mailbox access and send-as permissions onto shared mailbox A.

For every shared mailbox, we create a specific security group that contains the members who should have access to that particular shared mailbox.