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Microsoft Exchange Online

Email integration

Connect NIM with Microsoft Exchange Online to automate data synchronization and operational workflows across your environment.

Solutions This Integration Solves​

User provisioning

Maintain supported user and account records through NIM.

  • Keeps service identities current
  • Reduces manual setup

Service access management

Manage supported groups, roles, and relationships consistently.

  • Improves access governance
  • Supports audit readiness

Communication readiness

Keep people and related service data aligned with your identity source.

  • Improves operational accuracy
  • Reduces service disruption

Service automation

Standardize common administrative tasks for communication systems.

  • Faster response times
  • Repeatable execution

Supported operations​

TableReadCreateUpdateDelete
CASMailboxes
DistributionGroup
DistributionGroupMembers
MailboxAutoReplyConfigurations
Mailboxes
MailboxPermissions

Guides​

Configure ConnectionReview setup steps, required settings, and implementation details.

Troubleshooting​

"The underlying connection was closed: An unexpected error occurred on a receive.. The underlying connection was closed: An unexpected error occurred on a receive.. The specified value is not valid in the 'SslProtocolType' enumeration.Parameter name: sslProtocolType."

The solution is to ensure the server has TLS 1.0 and TLS 1.1 disabled and TLS 1.2 enabled on the system level, but also .NET and Internet Settings.

To implement this fix, update the following registry changes:

Disable TLS 1.0​

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client]

  • "DisabledByDefault"=dword:00000001
  • "Enabled"=dword:00000000

Disable TLS 1.1​

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client]

  • "DisabledByDefault"=dword:00000001
  • "Enabled"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server]

  • "DisabledByDefault"=dword:00000001
  • "Enabled"=dword:00000000

Enable TLS 1.2​

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]

  • "DisabledByDefault"=dword:00000000
  • "Enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server]

  • "DisabledByDefault"=dword:00000000
  • "Enabled"=dword:00000001

.NET 3.5 and 2.0​

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v2.0.50727]

  • "SystemDefaultTlsVersions"=dword:00000001
  • "SchUseStrongCrypto"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v2.0.50727]

  • "SystemDefaultTlsVersions"=dword:00000001
  • "SchUseStrongCrypto"=dword:00000001

.NET 4.x​

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319]

  • "SystemDefaultTlsVersions"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319]

  • "SystemDefaultTlsVersions"=dword:00000001

Enable TLS 1.2 for WinHTTP​

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]

  • "DefaultSecureProtocols"=dword:00000800

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]

  • "DefaultSecureProtocols"=dword:00000800