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My Blog is moving to a new site

Hi everyone,

I want to encourage you to visit my new blog platform here http://blog.ahasayen.com

I will not be posting any new blog posts here, and soon, everything will be available on the new blog site.

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Exchange Online and Remote Domains

Info

This article talks about the importance to configure Remote Domain both on Exchange on premise and Exchange Online to control the format and type of email messages exchange between hosted mailbox users and on premise mailbox users.

Scope

From Exchange Online part, we care about two domains:

aramex.mail.onmicrosoft.com [this is the primary SMTP domain in Exchange Online]

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Hybrid Email Moderation Part 1

Info

This article talks about how important is to configure Remote Domains both in the on premise Exchange environment and on Exchange Online to preserve headers and TNEF format between the two organizations. The TNEF format is what makes the Approve or Reject buttons appear in the email messages.

Remote Domains

Remote Domains is a way in Exchange configuration to control the…

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Hybrid Email Moderation Part 1

Info

This article is all about talking about the email moderation when people have mailboxes on premise and on Office 365. In certain cases, the approval process do not work well if we have mixed of approval and senders between on premise and Office 365.

How Email Moderation Works

A mail user sends an email to a moderated group.

The categorizer at hub transport server…

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Hosted Voice Mail in Office 365 Part 2

Info

This article will talk about a real call flow scenario when leaving voice mail to hosted mailbox user via Skype for Business on Premise.

Let us imagine that Bob has his mailbox migrated to Office 365, and he is enabled for UM there. Now let us suppose that Alice tried to call Bob on his extension and Bob did not answer. How can Alice leave voice mail to Bob in this case?

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Hosted Voice Mail in Office 365 Part 1

Info

This article talks about how hosted voice mail works in hybrid environment. Hosted voice mail means voice mail in the cloud (Office 365) because the user’s mailbox is there. Hybrid means the user is using on premise Skype for Business.

The challenge now that the someone calls a hosted mailbox user (user with mailbox in Office 365) using the on premise Skype for Business…

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Info

This article shows the call flow between Exchange and Skype for Business when someone is leaving a voice mail or trying to access OVA or auto-attendant.

Voice Mail Call Flow

So Alice just called Bob on his Skype extension, and let us say that Skype decided to route the call to Exchange UM for any reason, like Bob not answering.

Skype will then send SIP INVITE to the UMCa…

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Exchange UM Architecture Part 1 of 2

Info

This article is about exploring what are the main components of Exchange Unified Messaging platform (UM) and how call routing and voice mail features really work behind the scenes.

Exchange UM Components

UM Dial Plans

UM Messaging Policies

UM IP Gateways / UM Hunt Groups

UM Auto Attendants

What is Exchange Dial Plan?

Dial plans is the main and most important component…

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Explore Exchange UM

Info

This article is to introduce what Exchange Unified Messaging is really about, and go through quick listing of the features it can provide.

What is Exchange UM?

Exchange UM (Unified Messaging) is a big IVR Application*. It has:

Speech Recognition system, so you can ask it “read my email” and it will do that. This is same as Siri in IPhones. This feature is called Outloo…

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Modern Authentication Part 2

We will go through how modern authentication works when a user is trying to use Outlook client with modern authentication to connect to his mailbox in Exchange Online.

Outlook user is trying to connect to a service which is Exchange Online [EXO].

EXO will tell me go and get credentials [401 redirect] to Azure AD

I put my UPN, and Azure AD says “Hey you are federated, go to Aramex…

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Modern Authentication Part 1

Introduction

It is simply OAuth Based Authentication for Office clients against Office 365. It enables:

Multi-Factor authentication

Support for third party STSes

Conditional Access

Supported across platform:

iOS, OS X

Android

Windows

Modern Authentication Client Support

Office Client Updates

Modern Authentication rely heavily on how much Office clients…

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Exchange Email Moderation Script

Hi everyone,

Email Moderation is one of my best features in mail flow restrictions in Exchange. You can assign one or more moderators to groups, so that if any one of them approves the email being sent, then this will release the email to that moderated group.

You can view email moderation information from Exchange GUI admin tools, but for dynamic moderated groups, you shall use PowerShell to…

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Azure GUID to ImmutableID App

When working with Azure AD, and you deploy one of the Azure AD Synchronization tools like AD Connect, by default objectGUID is used as your ImmutableID. When objects are synced to Azure AD, objects in the cloud will have a converted value of the objectGUID in a base-64 version called ImmutableID.

Let us say that a user called John exist in your AD, his objectGUID is something like this:

The user…

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Azure AD Sync Monitor Script

If you are synchronizing your on premise Active Directory with Azure Active Directory, then you know for sure that maintaining a healthy synchronization is not an easy thing to do.

I want to give you my experience in synchronizing a single domain AD to Azure AD, using ObjectGuid as anchor attribute.

The Challenge

I am using Azure AD Connect to synchronize AD objects to Azure AD. The Azure AD…

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Azure Sync Case

I was working heavily on AD Sync Tool with all its versions including the AAD Connect tool. And I came across an issue that will cause you trouble soon. So in this blog post I will share my experience with you.

Case:

My environment was consisting of one AD domain with Exchange 2010 on premise and a single sign on experience. The AD domain and SMTP domain is the same (contoso.com)

I have a manager…

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Config Manager SCCM 2012/R2 SUP Fix

Hi everyone,

I want to share with you a strange behavior that happened that day when you uninstall WSUS and SUP from a server and then you try to install them again.

Say for example that you have a dedicated server running WSUS and SUP on it, and you got to a problem that you could not solve, and you decided to remove WSUS and SUP and then install them again to solve the problem. It can happen.

T…

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Azure AD and AADConnect bulk delete

Hi everyone,

So you are using Azure AAD Connect to sync your directory to Azure Active Directory (a.k.a AAD), and everything works just fine.

Now a security audit is happening in your corporation, and they identified many inactive or disabled users in your on premise AD that are no longer in use.

Then you went to your on premise AD and deleted all those users. If you delete more than 500 users at…

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