Set ‘Configure Sender Filtering’ to ‘Enabled’
Details By default, sender filtering is enabled on a computer performing the Edge Transport server role for inbound messages from...
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- CIS Microsoft Exchange Server 2016 Hub V1.0.0
CIS Microsoft Exchange Server 2016 Hub V1.0.0
Set ‘Enable automatic forwards to remote domains’ to ‘False’
Details You can use this setting to determine if the server sends automatic forwards to remote domains. Rationale: Attackers can...Set ‘Enable automatic replies to remote domains’ to ‘False’
Details You can use this setting to determine if the server automatically replies to remote domains. Rationale: Attackers can use...Set ‘Enable non-delivery reports to remote domains’ to ‘False’
Details You can use this setting to determines if the server automatically sends delivery reports to remote domains. Rationale: Attackers...Set ‘Enable OOF messages to remote domains’ to ‘None’
Details You can use this setting to determine if the server automatically forwards out-of-office messages to remote domains. Rationale: Attackers...Set ‘Maximum number of recipients – organization level’ to ‘5000’
Details You can use this setting to control the total number of message recipients. When a message is first composed,...Set ‘Maximum receive size – connector level’ to ‘10240’
Details You can use this setting to limit the total size of messages at the connector level. This includes the...Set ‘Maximum receive size – organization level’ to ‘10240’
Details This limit includes the message header, the message body, and any attachments. For internal message flow, Exchange Server uses...Set ‘Maximum send size – organization level’ to ‘10240’
Details This limit includes the message header, the message body, and any attachments. For internal message flow, Exchange Server uses...Set ‘Message tracking logging – Transport’ to ‘True’
Details A message tracking log provides a detailed log of all message activity as messages are transferred to and from...