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Set-SmimeConfig

Use the Set-SmimeConfig cmdlet to modify the S/MIME configuration for Outlook on the web (formerly known as Outlook Web App or OWA) and new Outlook for Windows. Exchange PowerShell reference

From the Exchange PowerShell reference 29 parameters Its page in the reference

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Parameters

29 in the Exchange PowerShell reference
Show its 29 parameters
-IdentityThis parameter is reserved for internal Microsoft use.
-Confirm, -cfThis parameter is reserved for internal Microsoft use.
-OWAAllowUserChoiceOfSigningCertificateThe OWAAllowUserChoiceOfSigningCertificate parameter specifies whether to allow users to select the certificate to use when they digitally sign email messages in Outlook on the web.
-OWAAlwaysEncryptThe OWAAlwaysEncrypt parameter specifies whether all outgoing messages are automatically encrypted in Outlook on the web.
-OWAAlwaysSignThe OWAAlwaysSign parameter specifies whether all outgoing messages are automatically signed in Outlook on the web.
-OWABCCEncryptedEmailForkingThe OWABCCEncryptedEmailForking parameter specifies how Bcc messages are encrypted in Outlook on the web.
-OWACheckCRLOnSendThe OWACheckCRLOnSend parameter specifies how the certificate revocation list (CRL) check is enforced when an email message is sent in Outlook on the web.
-OWAClearSignThe OWAClearSign parameter specifies how email messages are signed in Outlook on the web.
-OWACopyRecipientHeadersThis parameter is reserved for internal Microsoft use.
-OWACRLConnectionTimeoutThe OWACRLConnectionTimeout parameter specifies the time in milliseconds that Outlook on the web waits while connecting to retrieve a single CRL as part of a certificate validation operation.
-OWACRLRetrievalTimeoutThe OWACRLRetrievalTimeout parameter specifies the time in milliseconds that Outlook on the web waits to retrieve all CRLs when validating a certificate.
-OWADisableCRLCheckThe OWADisableCRLCheck parameter enables or disables CRL checking in Outlook on the web.
-OWADLExpansionTimeoutThe OWADLExpansionTimeout parameter specifies the time in milliseconds that Outlook on the web waits when sending encrypted messages to members of a distribution group that requires expansion.
-OWAEncryptionAlgorithmsThe OWAEncryptionAlgorithms parameter specifies a list of symmetric encryption algorithms that are used by Outlook on the web to encrypt messages.
-OWAEncryptTemporaryBuffersThe OWAEncryptTemporaryBuffers parameter specifies whether the Outlook on the web client-side temporary message storage buffers are encrypted.
-OWAForceSMIMEClientUpgradeThe OWAForceSMIMEClientUpgrade parameter specifies whether or not users are forced to upgrade an S/MIME control that's older than their current version in Outlook on the web.
-OWAIncludeCertificateChainAndRootCertificateThe OWAIncludeCertificateChainAndRootCertificate parameter specifies whether the certificate chains and root certificates of the signing or encryption certificates are included in the message in Outl…
-OWAIncludeCertificateChainWithoutRootCertificateThe OWAIncludeCertificateChainWithoutRootCertificate parameter specifies whether the certificate chains of the signing or encryption certificates are included in messages in Outlook on the web.
-OWAIncludeSMIMECapabilitiesInMessageThe OWAIncludeSMIMECapabilitiesInMessage parameter specifies whether signed and encrypted messages in Outlook on the web include attributes that describe the supported encryption and signing algorith…
-OWAOnlyUseSmartCardThe OWAOnlyUseSmartCard parameter specifies whether smartcard-based certificates are required for Outlook on the web message signing and decryption.
-OWASenderCertificateAttributesToDisplayThe OWASenderCertificateAttributesToDisplay parameter controls which certificate attributes are displayed when signature verification proceeds despite a mismatch between the sender's email address an…
-OWASignedEmailCertificateInclusionThe OWASignedEmailCertificateInclusion parameter specifies whether the sender's encryption certificate is excluded from a signed email message in Outlook on the web.
-OWASigningAlgorithmsThe OWASigningAlgorithms parameter specifies the list of symmetric encryption signing algorithms that are used by Outlook on the web to sign messages with the S/MIME control.
-OWATripleWrapSignedEncryptedMailThe OWATripleWrapSignedEncryptedMail parameter specifies whether signed and encrypted email messages in Outlook on the web are triple-wrapped.
-OWAUseKeyIdentifierThe OWAUseKeyIdentifier parameter specifies whether a certificate's key identifier is used to encode the asymmetrically encrypted token in Outlook on the web.
-OWAUseSecondaryProxiesWhenFindingCertificatesThe OWAUseSecondaryProxiesWhenFindingCertificates parameter specifies whether alternative proxies are used during the certificate search in Outlook on the web.
-NoSignOnReplyThis parameter applies only to new Outlook for Windows.
-SMIMECertificateIssuingCAThe SMIMECertificateIssuingCA parameter specifies the serialized certificate store (SST) that contains the Certificate Authority (CA) signing and intermediate certificate information.
-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.