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How to Authenticate an IMAP, POP, or SMTP connection using 2.0 Auth for ERP, SMTP application server

https://microsoftandbeyond.blogspot.com/2023/05/office-365-and-imap-or-pop3-with-oauth.html

https://learn.microsoft.com/en-us/exchange/client-developer/legacy-protocols/how-to-authenticate-an-imap-pop-smtp-application-by-using-oauth

Application (client) ID
:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Object ID
:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Directory (tenant) ID
:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

secret value:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Install-Module -Name AzureAD
Install-Module -Name ExchangeOnlineManagement

$AppId = “XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX”
$TenantId = “XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX”

Import-module AzureAD
Connect-AzureAd -Tenant $TenantId

($Principal = Get-AzureADServicePrincipal -filter “AppId eq ‘$AppId'”)
$PrincipalId = $Principal.ObjectId

$DisplayName = “principal for IMAP/POP3”

Import-module ExchangeOnlineManagement
Connect-ExchangeOnline -Organization $TenantId

New-ServicePrincipal -AppId $AppId -ServiceId $PrincipalId -DisplayName $DisplayName

Add-MailboxPermission -User $PrincipalId -AccessRights FullAccess -Identity “Your email ID”

source

by Microsoft & beyond

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28 thoughts on “How to Authenticate an IMAP, POP, or SMTP connection using 2.0 Auth for ERP, SMTP application server”

  • Thank you so much for this video! The detailed explanation of how to authenticate IMAP, POP, and SMTP connections using OAuth 2.0 was incredibly helpful. Your step-by-step guide made it easy to follow along. Looking forward to more great content!

  • I want to register azure ad enterprise app through .net code.. suggest any video demo for this..

  • do you know how to avoid error Authentication unsuccessful, user is locked by your organization's security defaults policy , i don't want turn off security default's , i need use send thru SMTP with office365 mailbox from one app and multi printer..

  • Hi
    can you check why this is coming, I follow your process only . but it still getting error

    PS /home/d> Connect-ExchangeOnline -Organization $TenantId

    Connect-ExchangeOnline: A parameter cannot be found that matches parameter name 'Organization'.

    PS /home/d>

    PS /home/d> New-ServicePrincipal -AppId $AppId -ServiceId $PrincipalId -DisplayName $DisplayName

    New-ServicePrincipal: The term 'New-ServicePrincipal' is not recognized as a name of a cmdlet, function, script file, or executable program.

    Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

  • Hello Man, thank you for your videos , they are very helpfull , Could this be valid for setting up an Office 365 account in Outlook with pop3?

  • Thanx for amazing video.

    I have SAP application in-premises and wants to relay email using SMTP OAuth by the smtp client submission.

    I have done the enterprise registration and added API send permission as a application administrator but still unable to send email from SAP application and giving error.

  • Sir, would you be available for some consulting work on this to get it working for us? We have IMAP Working but cannot get SMTP on the same. I think we need your expertise!

  • Thank you for the tutorial but i have a small question: i followed all your steps and they worked fine but which login details should i use now for the application to send mails?

  • Hello, I completed the setup using above video but still getting popups when trying to sign in with IMAP.

    Regarding Client secrect portion – when we'll need to apply that in the setup process?

Comments are closed.