docker run -ti mcr.microsoft.com/powershell:7.1.0-ubuntu-18.04
NOTE: I'm using an older image/tag as the latest image doesn't login due to the following issue (PowerShell/PowerShell-Docker#534)
PS /> Install-Module -Name ExchangeOnlineManagement
PS /> Connect-ExchangeOnline -Device
PS /> Set-OrganizationConfig -AllowPlusAddressInRecipients $true
https://docs.microsoft.com/en-us/exchange/recipients-in-exchange-online/plus-addressing-in-exchange-online https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?view=exchange-ps