Jan 22, 2026 Informational Update- EX19-ED-000006 - SchUseStrongCrypto must be enabled.
- EX19-ED-000026 - The Exchange email diagnostic log level must be set to the lowest level.
- EX19-ED-000040 - Exchange queue monitoring must be configured with threshold and action.
- EX19-ED-000055 - Exchange must not send customer experience reports to Microsoft.
- EX19-ED-000095 - Exchange internet-facing send connectors must specify a Smart Host.
- EX19-ED-000113 - Exchange receive connectors must control the number of recipients per message.
- EX19-ED-000118 - Exchange receive connectors must control the number of recipients chunked on a single message.
- EX19-ED-000126 - The Exchange sender filter must block unaccepted domains.
- EX19-ED-000133 - Exchange messages with a malformed From address must be rejected.
- EX19-ED-000135 - The Exchange tarpitting interval must be set.
- EX19-ED-000224 - The Exchange Edge server must point to a trusted list of DNS servers for external and internal resolution.
- EX19-ED-000236 - Exchange internal Send connectors must require encryption.
Miscellaneous- Metadata updated.
- Platform check updated.
- See also link updated.
Added- DISA_STIG_Microsoft_Exchange_2019_Edge_Server_v2r2.audit from DISA Microsoft Exchange 2019 Edge Server STIG v2r2
Removed- DISA_Microsoft_Exchange_2019_Edge_Server_STIG_v2r2.audit from DISA Microsoft Exchange 2019 Edge Server v2r2 STIG
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