STIGQter STIGQter: STIG Summary:

Microsoft Exchange 2019 Edge Server Security Technical Implementation Guide

Version: 2

Release: 2 Benchmark Date: 30 Jan 2025

CheckedNameTitle
SV-259577r960759_ruleSchUseStrongCrypto must be enabled.
SV-259578r960792_ruleExchange servers must use approved DOD certificates.
SV-259579r960801_ruleExchange must have accepted domains configured.
SV-259580r960840_ruleExchange external Receive connectors must be domain secure-enabled.
SV-259581r960879_ruleThe Exchange email diagnostic log level must be set to the lowest level.
SV-259582r960879_ruleExchange connectivity logging must be enabled.
SV-259583r960900_ruleExchange message tracking logging must be enabled.
SV-259584r960918_ruleExchange queue monitoring must be configured with threshold and action.
SV-259585r960930_ruleExchange audit data must be protected against unauthorized access (read access).
SV-259586r960933_ruleExchange audit data must be protected against unauthorized access for modification.
SV-259587r960936_ruleExchange audit data must be protected against unauthorized access for deletion.
SV-259588r960948_ruleExchange audit data must be on separate partitions.
SV-259589r1015762_ruleExchange local machine policy must require signed scripts.
SV-259590r960963_ruleExchange must not send customer experience reports to Microsoft.
SV-259591r960963_ruleExchange Send Fatal Errors to Microsoft must be disabled.
SV-259592r961095_ruleExchange queue database must reside on a dedicated partition.
SV-259593r961101_ruleExchange internet-facing send connectors must specify a Smart Host.
SV-259594r1043178_ruleExchange internal send connectors must use domain security (mutual authentication Transport Layer Security).
SV-259595r1043178_ruleExchange internet-facing receive connectors must offer Transport Layer Security (TLS) before using basic authentication.
SV-259596r961152_ruleMore than one Edge server must be deployed.
SV-259597r961155_ruleExchange Outbound Connection Timeout must be 10 minutes or less.
SV-259598r961155_ruleExchange Outbound Connection limit per Domain Count must be controlled.
SV-259599r961155_ruleExchange receive connector maximum hop count must be 60.
SV-259600r961155_ruleExchange receive connectors must control the number of recipients per message.
SV-259601r961155_ruleExchange send connector connections count must be limited.
SV-259602r961155_ruleExchange message size restrictions must be controlled on Send connectors.
SV-259603r961155_ruleExchange send connectors delivery retries must be controlled.
SV-259604r961155_ruleExchange receive connectors must be clearly named.
SV-259605r961155_ruleExchange receive connectors must control the number of recipients chunked on a single message.
SV-259606r961155_ruleThe Exchange internet receive connector connections count must be set to default.
SV-259607r961155_ruleExchange Message size restrictions must be controlled on receive connectors.
SV-259608r961161_ruleActive hyperlinks in messages from non .mil domains must be rendered unclickable.
SV-259609r961161_ruleExchange messages with a blank sender field must be rejected.
SV-259610r961161_ruleExchange messages with a blank sender field must be filtered.
SV-259611r961161_ruleExchange filtered messages must be archived.
SV-259612r961161_ruleThe Exchange sender filter must block unaccepted domains.
SV-259613r961161_ruleExchange nonexistent recipients must not be blocked.
SV-259614r961161_ruleThe Exchange Sender Reputation filter must be enabled.
SV-259615r961161_ruleThe Exchange Sender Reputation filter must identify the spam block level.
SV-259616r961161_ruleExchange Attachment filtering must remove undesirable attachments by file type.
SV-259617r961161_ruleThe Exchange Spam Evaluation filter must be enabled.
SV-259618r961161_ruleThe Exchange Block List service provider must be identified.
SV-259619r1040909_ruleExchange messages with a malformed From address must be rejected.
SV-259620r961161_ruleThe Exchange Recipient filter must be enabled.
SV-259621r961161_ruleThe Exchange tarpitting interval must be set.
SV-259622r961161_ruleExchange internal Receive connectors must not allow anonymous connections.
SV-259623r961161_ruleExchange Simple Mail Transfer Protocol (SMTP) IP Allow List entries must be empty.
SV-259624r961161_ruleThe Exchange Simple Mail Transfer Protocol (SMTP) IP Allow List Connection filter must be enabled.
SV-259625r961161_ruleThe Exchange Simple Mail Transfer Protocol (SMTP) Sender filter must be enabled.
SV-259626r961161_ruleExchange must have anti-spam filtering installed.
SV-259627r961161_ruleExchange must have anti-spam filtering enabled.
SV-259628r961161_ruleExchange must have anti-spam filtering configured.
SV-259629r961161_ruleExchange Sender Identification Framework must be enabled.
SV-259630r1043182_ruleExchange must limit the Receive connector timeout.
SV-259631r961353_ruleRole-Based Access Control must be defined for privileged and nonprivileged users.
SV-259632r1015763_ruleThe Exchange application directory must be protected from unauthorized access.
SV-259633r961461_ruleThe Exchange software baseline copy must exist.
SV-259634r1015764_ruleThe Exchange local machine policy must require signed scripts.
SV-259635r961470_ruleExchange services must be documented, and unnecessary services must be removed or disabled.
SV-259636r961587_ruleThe Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
SV-259637r961608_ruleExchange software must be installed on a separate partition from the OS.
SV-259638r961620_ruleThe Exchange SMTP automated banner response must not reveal server details.
SV-259639r961620_ruleExchange internal Send connectors must use an authentication level.
SV-259640r961632_ruleExchange must provide redundancy.
SV-259641r961632_ruleExchange internal Receive connectors must require encryption.
SV-259642r961632_ruleExchange internal Send connectors must require encryption.
SV-259643r961638_ruleExchange must render hyperlinks from email sources from non-.mil domains as unclickable.
SV-259644r961683_ruleExchange must have the most current, approved Cumulative Update (CU) installed.