| Exch-HB-205 | Medium | Receive Connector connection must be encrypted. | The Simple Mail Transfer Protocol (SMTP) Receive Connector is used by Exchange to send and receive messages from server to server using SMTP protocol. This setting controls the encryption... |
| Exch-HB-204 | Medium | Receive Connector must restrict relay access. | This control is used to limit the servers that may use this server as a relay. If an Simple Mail Transport Protocol (SMTP) sender does not have a direct connection to the Internet (for example,... |
| EXCH-HB-322 | Medium | Send Connectors must use a Smart Hosts. | In the case of identifying a 'Smart Host' for the email environment, the connector level is the preferred location for this configuration because flow control in this routing group will be... |
| Exch-HB-213 | Medium | Send Connector message size must be controlled. | This setting can be used to limit the total size of messages at the connector level. This includes the message header, the message body, and any attachments. For internal message flow, Exchange... |
| Exch-HB-206 | Medium | Receive Connectors must use Domain Security (Mutual Authentication TLS). | The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. There are several controls that work together to provide security between... |
| Exch-HB-216 | Medium | Send Connectors must use Domain Security (Mutual Authentication TLS). | The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. There are several controls that work together to provide security between... |
| Exch-HB-217 | Medium | Send Connectors must be encrypted. | The Simple Mail Transfer Protocol (SMTP) connector is used by Exchange to send and receive messages from server to server. There are several controls that work together to provide security between... |
| Exch-HB-218 | Medium | Email application directory permissions must be restricted. | Default product installations may provide more generous permissions than are necessary to run the application. By examining and tailoring permissions to more closely provide the least amount of... |
| Exch-HB-219 | Medium | Connectivity logging must be enabled. | A connectivity log is a record of the SMTP connection activity of the outbound message delivery queues to the destination Mailbox server, smart host, or domain. Connectivity logging is available... |
| Exch-HB-203 | Low | Receive Connector timeout must be limited. | Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the number of idle minutes before the connection is dropped. It works in... |
| Exch-HB-202 | Low | Receive Connector connections count must be controlled. | Email system availability depends in part on best practices strategies for setting tuning. This configuration controls the maximum number of simultaneous inbound connections allowed to the server.... |
| Exch-HB-201 | Low | Receive Connector message size must be controlled. | This setting can be used to limit the total size of messages at the connector level. This includes the message header, the message body, and any attachments. For internal message flow, Exchange... |
| Exch-HB-210 | Low | Receive Connectors must be clearly named. | For Receive Connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubleshooting efforts may be impaired, or incorrect assumptions made... |
| Exch-HB-211 | Low | Send Connectors must be clearly named. | For Send Connectors, unclear naming as to direction and purpose increases risk that messages may not flow as intended, troubleshooting efforts may be impaired, or incorrect assumptions made about... |
| Exch-HB-214 | Low | Send Connector connections count must be limited. | This setting controls the maximum number of simultaneous outbound connections allowed for a given SMTP Connector, and can be used to throttle the SMTP service if resource constraints warrant it. ... |
| Exch-HB-209 | Low | Receive Connectors must control the number of recipients 'chunked' on a single message. | Email system availability depends in part on best practices strategies for setting tuning configurations. This setting is used when two Exchange servers send or receive email. The chunking setting... |
| Exch-HB-208 | Low | Receive Connectors must control the message count per inbound session. | Email system availability depends in part on best practices strategies for setting tuning configurations. This setting controls the maximum number of messages allowed in a single SMTP session by... |
| Exch-HB-212 | Low | Send Connector delivery retries must be controlled. | This setting controls the rate at which delivery attempts from the home domain are retried, user notification is issued, and expiration timeout when the message will be discarded.
If delivery... |
| Exch-HB-215 | Low | Send connections per domain must be set. | This configuration controls the maximum number of simultaneous outbound connections to a domain, and works in conjunction with the Maximum Outbound Connections Count setting as a delivery tuning... |
