gscales

			String ClientId = "20773535-6b8f-4f3d-8f0e-4b7710d79afe";
			string UserName = "[email protected]";
			string scope = "https://outlook.office.com/SMTP.Send";
			string redirectUri = "msal20773535-6b8f-4f3d-8f0e-4b7710d79afe://auth";
			string From = "[email protected];
			String To = "[email protected]";
			String SMTPServer = "smtp.office365.com";
			Int32 SMTPPort = 587;

			PublicClientApplicationBuilder pcaConfig = PublicClientApplicationBuilder.Create(ClientId)

gscales

function Get-GraphUserPhoto {
    [CmdletBinding()]
    param (
        [Parameter(Position = 0, Mandatory = $true)]
        [String]
        $Filename,
        [Parameter(Position = 1, Mandatory = $true)]
        [String]
        $MailboxName,
        [Parameter(Position = 2, Mandatory = $false)]

gscales

PSCredential pSCredential = new PSCredential("[email protected]", new NetworkCredential("", "pass##").SecurePassword);
string MailboxName = pSCredential.UserName;
string scope = "https://outlook.office365.com/.default";
string ClientId = "a0c73c16-a7e3-4564-9a95-2bdf47383716";

HttpClient Client = new HttpClient();
var TenantId = ((dynamic)JsonConvert.DeserializeObject(Client.GetAsync("https://login.microsoftonline.com/" + MailboxName.Split('@')[1] + "/v2.0/.well-known/openid-configuration").Result.Content.ReadAsStringAsync().Result)).authorization_endpoint.ToString().Split('/')[3];

PublicClientApplicationBuilder pcaConfig = PublicClientApplicationBuilder.Create(ClientId);
pcaConfig.WithTenantId(TenantId);

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string MailboxName = "[email protected]";
string scope = "https://outlook.office365.com/.default";
string ClientId = "a0c73c16-a7e3-4564-9a95-2bdf47383716";


PublicClientApplicationBuilder pcaConfig = PublicClientApplicationBuilder.Create(ClientId);


pcaConfig.WithAuthority(AadAuthorityAudience.AzureAdMultipleOrgs, false);
var TokenResult = pcaConfig.Build().AcquireTokenInteractive(new[] { scope })

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System.Security.SecureString secureString = new System.Security.SecureString();
string myPassword = "password";
foreach (char c in myPassword)
secureString.AppendChar(c);
PSCredential credential = new PSCredential("[email protected]", secureString);
WSManConnectionInfo connectionInfo = new WSManConnectionInfo(new Uri("https://ps.outlook.com/PowerShell-LiveID?PSVersion=2.0"), "http://schemas.microsoft.com/powershell/Microsoft.Exchange", credential);
connectionInfo.AuthenticationMechanism = AuthenticationMechanism.Basic;
connectionInfo.SkipCACheck = true;
connectionInfo.SkipCNCheck = true;

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Import-Module CredentialManager
Import-Module ./AzureMFAOTPv2.ps1
$Cred = Get-Credential
$token = Get-AccessTokenMFA -OTP (Get-TimeBasedOneTimePassword -SharedSecret (Get-StoredCredential -Target Auth.GS -AsCredentialObject).Password) -Credential $Cred -ClientId 'a0c73c16-a7e3-4564-9a95-2bdf47383716' -Scopes 'https://outlook.office365.com/.default'
$domain = $Cred.UserName.Split('@')[1]
$tokenValue = ConvertTo-SecureString "Bearer $($token.access_token)" -AsPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential($Cred.UserName, $tokenValue)
$session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri "https://outlook.office365.com/powershell-liveid?DelegatedOrg=$($domain)&BasicAuthToOAuthConversion=true" -Credential $credential -Authentication Basic -AllowRedirection
Import-PSSession $session

gscales

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Threading.Tasks;
using System.Net.Http;
using Microsoft.Identity.Client;
using Newtonsoft.Json;
using EWSWSDLoAuthExample.com.office365.outlook;

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp23
{
	class OAuthExchangeServiceBinding : com.office365.outlook.ExchangeServiceBinding
	{

gscales

function Show-OAuthWindow {
    [CmdletBinding()]
    param (
        [System.Uri]
        $Url
    
    )
    ## Start Code Attribution
    ## Show-AuthWindow function is the work of the following Authors and should remain with the function if copied into other scripts
    ## https://foxdeploy.com/2015/11/02/using-powershell-and-oauth/

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$MailboxName = "[email protected]";
$body = @{
    "username" = $MailboxName
}
$RealmDiscover = Invoke-RestMethod -Uri ("https://login.microsoftonline.com/common/GetCredentialType") -ContentType "application/json; charset=UTF-8" -Method POST -Body ($body | ConvertTo-Json)
if ([Int]$RealmDiscover.EstsProperties.DomainType -eq 1 -bor [Int32]$RealmDiscover.EstsProperties.DomainType -eq 2) {
    throw "Not Office365 or hybrid"
}
else {
    $AutoDiscoverURI = "https://outlook.office365.com/autodiscover/autodiscover.json/v1.0/" + $MailboxName + "?Protocol=EWS"