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Phillip Shilling's avatar
Phillip Shilling
Brass Contributor
Aug 27, 2021

Unable to connect to ExchangeOnline macOS

When attempting to connect to ExchangeOnline via powershell on macOS i get the following error. 

 

Exception: Connecting to remote server outlook.office365.com failed with the following

error message : error:1416F086:SSL

routines:tls_process_server_certificate:certificate verify failed

 

Managed to resolve my WSMan errors and then get this far. Tried in both stable and preview releases. Running macOS BigSur on M1.

 

Any ideas?

 

exchange
office 365
  • Harm_Veenstra's avatar
    Harm_Veenstra
    MVP
    Jan 29, 2022
    For PowerShell on Windows I would say "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls -bor [Net.SecurityProtocolType]::Tls11 -bor [Net.SecurityProtocolType]::Tls12" but I'm not sure if that's a thing on macOS 🙂

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