Use the Sender Filtering feature to specify a list of e-mail senders that you want to block completely. You can configure Sender Filtering to block individuals, single domains, or whole domain hierarchies. You can also specify how Exchange Transport servers respond when a blocked sender or domain transmits a message. The Sender Filtering feature also lets you block messages that do not specify who sent a message.
Use the IP Allow List feature to specify IP addresses that are always allowed to connect to and transmit e-mail messages ...
Use the IP Block list to designate IP addresses that are never allowed to connect to this server. You can configure the IP ...
Use the Recipient Filtering feature to specify a list of e-mail recipients from which this server will not accept messages. ...
Use the SCW to minimize security vulnerabilities by disabling functionality on your server that is not required for the Edge ...
Use the Sender Filtering feature to specify a list of e-mail senders that you want to block completely. You can configure ...
Use the Sender Reputation feature to collect information about recent e-mail messages received from individuals and domains. ...
User "%1" attempted to modify a custom prompt for auto attendant "%2". The operation failed. Make sure that the UM administrator ...
User "%1" attempted to modify a custom prompt for dial plan "%2". The operation failed. Make sure that the UM administrator ...
User "%1" cannot synchronize their mobile device with their mailbox because Exchange ActiveSync has been disabled for this ...