One or more messages have failed delivery due to insufficient permissions on the remote server. If the remote server is in another domain, the message may have been rejected due to an IP Block List or IP Block List Provider. Please contact the remote system administrator to have your IP address added to the IP Allow List. If your server is being blocked by several domains, please review additional information available in Microsoft Support Knowledge Base article 928123.
One or more folders in your mailbox is named incorrectly. The name of one or more of your folders includes the character ...
One or more folders specified in folder scope for indexed search is not a mailbox folder. Indexed search is not supported ...
One or more items couldn't be attached because they exceeded the maximum size limit of {0} megabytes (MB) for attachments. ...
One or more messages have failed delivery due to DNS response 'non-existent domain'. This will occur if one of the DNS servers ...
One or more messages have failed delivery due to insufficient permissions on the remote server. If the remote server is in ...
One or more messages in the 'Messages awaiting directory lookup' queue on server {1} are addressed to database '{3}' on server ...
One or more messages in the 'Messages awaiting directory lookup' queue on server {1} are addressed to server {2}. Server ...
One or more messages in the 'Messages awaiting directory lookup' queue on server {1} are addressed to the mailbox store '{3}' ...
One or more MSExchangeIS 1003 events have been detected in the Application log. This indicates that the affected database ...