A few weeks ago I posted a script that would automatically, periodically, reconnect to Exchange Online. In field testing it would still prompt for credentials after 1-2 days, whatever I did.<\/p>\n
So I took a different route and am now rewriting Microsofts’ module on the fly to no longer prompt for credentials. If you use below function to connect to Exchange Online, you should never receive reconnect prompts \ud83d\ude42<\/p>\n
disclaimer: don’t overwrite $o365Creds with invalid creds elsewhere in your script as those are used globally.<\/strong><\/p>\n download:\u00a0https:\/\/gitlab.com\/Lieben\/assortedFunctions\/blob\/master\/buildResilientExchangeOnlineSession.ps1<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" A few weeks ago I posted a script that would automatically, periodically, reconnect to Exchange Online. In field testing it would still prompt for credentials after 1-2 days, whatever I did. So I took a different route and am now rewriting Microsofts’ module on the fly to no longer prompt for credentials. If you use … Continue reading Exchange Online reconnect script v2<\/span> \n\nfunction buildResilientExchangeOnlineSession {\n Param(\n [Parameter(Mandatory=$true)]$o365Creds,\n $commandPrefix\n )\n Write-Verbose "Connecting to Exchange Online"\n Set-Variable -Scope Global -Name o365Creds -Value $o365Creds -Force\n $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https:\/\/outlook.office365.com\/powershell-liveid\/ -Credential $o365Creds -Authentication Basic -AllowRedirection\n Import-PSSession $Session -AllowClobber -DisableNameChecking\n Write-Verbose "Connected to Exchange Online, exporting module..."\n $temporaryModulePath = (Join-Path $Env:TEMP -ChildPath "temporaryEXOModule")\n $res = Export-PSSession -Session $Session -CommandName * -OutputModule $temporaryModulePath -AllowClobber -Force\n $temporaryModulePath = Join-Path $temporaryModulePath -ChildPath "temporaryEXOModule.psm1"\n Write-Verbose "Rewriting Exchange Online module, please wait..."\n $regex='^.*\\bhost\\.UI\\.PromptForCredential\\b.*$'\n (Get-Content $temporaryModulePath) -replace $regex, "-Credential `$global:o365Creds ``" | Set-Content $temporaryModulePath\n $Session | Remove-PSSession -Confirm:$False\n Write-Verbose "Module rewritten, re-importing..."\n if($commandPrefix){\n Import-Module -Name $temporaryModulePath -Prefix $commandPrefix -DisableNameChecking -WarningAction SilentlyContinue -Force\n Write-Verbose "Module imported, you may now use all Exchange Online commands using $commandPrefix as prefix"\n }else{\n Import-Module -Name $temporaryModulePath -DisableNameChecking -WarningAction SilentlyContinue -Force\n Write-Verbose "Module imported, you may now use all Exchange Online commands"\n }\n return $temporaryModulePath\n}\n\n<\/pre>\n