Exchange

Exchange October 2018 Updates

October 22, 2018 By Gareth Gudger Leave a Comment

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Last week was a big week for Exchange 2016. Microsoft released Cumulative Update 11. At this time no updates were released for Exchange 2013 or Exchange 2010. Exchange 2013 entered extended support back on April 10th, and Microsoft announced in June that cumulative update 21 was the last planned update for Exchange 2013.

As always, test these updates in a lab first! I recommend checking out this 7-part guide on configuring Exchange in your lab. It doesn’t take much to get one going.

The updates are as follows:

Exchange 2016 Cumulative Update 11 | KB4134118 | UM Language Pack

So, what’s new in these Cumulative Updates?

Cumulative Update 11 now officially supports .NET Framework 4.7.2. Framework 4.7.2 is only optional at this point and will not become mandatory until the June 2019 updates. Due to no quarterly update scheduled for December, it is expected that CU13 will be the first version to enforce 4.7.2 as a requirement.

Support for 4.7.2 has been officially added to Exchange 2013 CU21, which was released back in June. 4.7.2 will also be a requirement for Exchange 2019. However, 4.7.2 is preinstalled with Windows Server 2019, so it will not require a separate download. For a great resource on navigating which .NET update goes with which CU I recommend reading Upgrade Paths for CU’s & .NET by Michel de Rooij.

In the June updates, it was stated that all Exchange roles would require Visual C++ 2013. Microsoft has since clarified this statement to the following:

Mailbox role will require both Visual C++ 2012 & Visual C++ 2013
Edge & Management tools only require Visual C++ 2012

Cumulative Update 11 will now perform prerequisite checks to confirm the necessary versions of Visual C++ are installed.

These updates contain 22 security and bug fixes. Check KB 4134118 for a list of issues CU11 resolves. [Read more…] about Exchange October 2018 Updates

Free Exchange chapters – Manage Users, Groups & Public Folders

October 20, 2018 By Gareth Gudger Leave a Comment

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Last year I was invited to write an Exchange 2016 book with a few fellow MVPs. Unfortunately, due to unforeseen circumstances, the book was later cancelled.

Rather than have my chapters go to waste (combined these chapters are 40,000 words) I wanted to offer them to you for free.

Below you will find three chapters covering the management of mailboxes, groups, contacts, mail-enabled users, and public folders.

That said I do want to warn you that these chapters only received a brief technical review. They did not go through any formal editorial process, so I apologize in advance for any errors. Please read these at your own risk.

While I offer these for free I would like to state that my work is under copyright. By viewing or downloading these chapters you agree to the copyright notice below.

Chapter 6 – Managing Mailboxes Download

Chapter 7 – Managing Groups, Contacts & Mail-Enabled Users Download

Chapter 8 – Managing Public Folders Download

Copyright © 2018 by Gareth Gudger

All rights reserved. No part of these chapters may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher, except in the case of brief quotations embodied in critical reviews and certain other noncommercial uses permitted by copyright law. For permission requests, please email info@supertekboy.com.

15 Ignite sessions every Exchange admin should see (2018)

October 13, 2018 By Gareth Gudger 2 Comments

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Microsoft hosted its annual Ignite conference in Orlando this September. Ignite was massive at 1,610 sessions. That is a lot of sessions! For the first time ever, Microsoft live streamed most of its sessions. Not just the keynotes! You can find the on-demand sessions at the Microsoft Tech Community. Here are the top 15 sessions I think every Exchange admin should watch.

Tip: I have included extensive notes for each session and the time each topic starts. You can expand the session notes under each video by clicking “Show more session notes”

Welcome to Exchange Server 2019
In this session, Greg Taylor and Brent Alinger discuss all the new features shipping in Exchange 2019. They also discuss features that have been discontinued and the system requirements for Exchange 2019.

Current state of Exchange Online (1:05 mins)
- Office 365 revenue 38% YoY growth
- Office 365 seats 29% YoY growth
- 135 million users in Office 365
- Outlook mobile on >100 million devices
- 94% of Fortune 500 have Office 365
Exchange 2019 only available via volume licensing (3:30 mins)
Changes to Exchange development (4:20 mins)
- Exchange on-prem & Exchange online were developed in tandem using the same code
- Exchange on-prem code moved to its own code branch & will be independent of Exchange online
- Discussion on cumulative update schedule going forward
Unified Messaging removed from Exchange 2019 (10:40 mins)
- UM functions have been removed
- Migrating a UM-enabled mailbox to Exchange 2019 will UM-disable that mailbox
- Recommend replacement is Cloud Voice Mail which can still store voice mail in Exchange mailboxes via EWS or SMTP
- If you need Unified Messaging:
  - Move all mailboxes to Office 365
  - Migrate to Skype for Business Server 2019 & utilize Cloud Voice Mail
  - Stay on Exchange 2016
  - Deploy a 3rd party voice mail solution
- For more information see BRK3229 – Everything you need to know about Skype for Business Server
Unified Messaging Migration scenarios for Exchange 2019 (15:30 mins)
- Exchange 2013 or 2016 + Skype for Business
  - Migrate to Skype for Business Server 2019
  - Enable Cloud Voice Mail
  - Migrate to Exchange Server 2019
- Exchange 2013 or Exchange 2016 + 3rd Party PBX
  - Implement a 3rd party voice mail solution
  - Migrate to Exchange Server 2019
- Note: Due to the discontinuation of Session Border Controllers, 3rd party PBX systems cannot use Cloud Voice Mail.
Vision for Exchange 2019 (17:30 mins)
Exchange Server 2019 requires Windows Server 2019 (19:20 mins)
- Windows Server 2019 available in October
Exchange Server 2019 supports Server Core (20:15 mins)
- Microsoft recommends server core for improved performance, smaller attack surface & smaller disk footprint.
- Exchange 2019 can still be installed on an OS with a GUI.
Exchange 2019 will only use TLS 1.2 (23:15 mins)
- RC2, RC4, DES, 3DES, MD5 & SHA disabled during install
- Preference for elliptic curve key exchange
- Exchange will use forward key secrecy
- EHLO Blog: Getting ready for TLS 1.2
Exchange RAM requirements (25:55 mins)
- Max supported RAM = 256 GB
- Mailbox role min RAM = 128 GB (2016 was 8 GB)
- Edge role min. RAM = 64 GB (2016 was 8 GB)
- Max processor count = 48 cores (2016 was 24)
Search changes in Exchange 2019 (29:35 mins)
- Big Funnel (powered by Bing technology) replaces Fast Search
- Indexes now stored in the DBs (in each mailbox)
- No more potentially huge index files that can become unhealthy
- Index health no longer an issue for DB failovers or switchovers
- DB log shipping includes the indexes
- Outlook 2019 in cached mode will attempt to pull search results from the server (not locally)
- For more information see – BRK3130 Email search in a flash! Accelerating Exchange 2019 with SSDs (notes and session below)
Storage (and MCDB) in Exchange 2019 (32:50 mins)
- Exchange 2019 can optionally leverage a MetaCache Database (“MCDB”) which is stored on SSD
- MCDB allows for:
  - Faster logons
  - Faster search
  - Faster retrieval of very small items
- MCDB caches 10% of key data from a DB including:
  - Index data
  - Mailbox folder structure
  - Very small items
- If the SSD or MCDB were to fail all requests will be served directly from the mailbox DB on the spindle disk
- Sizing for MCDB
  - Regardless of whether you deploy MCDB or not, your spindles must always meet the IOPS requirements for your users
  - All servers must have the same spindle & SSD layout
  - Spindle disk to SSD should be 3:1
  - To plan for SSD storage take 5-6% of your total spindle storage
  - Brent’s example
    - 15 spindle disks = 5 SSDs
    - 15 spindle disks at 10 TB each = 150 TB of mailbox storage
    - 5-6% of 150 TB = 10 TB of total MCDB storage
    - 10 TB = 5 SSDs at 2 TB each
Code optimizations (45:00 mins)
- No more UM code
- No more UM language packs to install
- Exchange 2019 DVD size reduced by 20%
- This results in:
  - Faster installs
  - Fewer files and disk usage
  - Improved security
  - Reduced surface area
Dynamic Database Cache (46:25 mins)
- Memory allocation between active & passive DB copies optimized
- Active copies get more memory and cache than passive copies
Performance gains from MCDB & Dynamic Database Cache (49:30 mins)
- 20% more users per server
- Latency cut by 50% for many client/server operations
Client Access Rules in Exchange 2019 (51:15 mins)
- This restricts who can access the Exchange Admin Center & Exchange Management Shell
  - For example, allows the Exchange Admin Center to be restricted externally
- Exchange 2019 should be the front-end for all client communications
- Administrator mailboxes must be on Exchange 2019 to leverage these rules
Remove-CalendarEvents (54:10 mins)
- Exchange administrators can cancel meetings (not appointments).
- This is particularly useful to cancel a meeting from an organizer who has left the company
Outlook default option for recurring meetings now configures an end-date rather than no-end-date (57:00 mins)
Do Not Forward Meetings (57:20 mins)
- Do Not Forward can now be set on meetings created in OWA.
- Meeting attendees in OWA will see a banner stating Do Not Forward is enabled & Forward option is greyed out in the menu.
- Exchange transport enforces the Do Not Forward settings so all Outlook clients honor this setting
- All other Outlook clients will receive an NDR if they attempt to forward a Do Not Forward meeting
New Out of Office (OOF) options in OWA (1:00:20 mins)
- Automatically decline meeting invites received during the OOF
- Clear existing meetings during the OOF
- Mark the user’s calendar as blocked during the OOF
Email Address Internationalization (1:01:45 mins)
- Send/receive messages to/from non-English email addresses such as:
  - Latin
  - Greek
  - Chinese
  - Japanese
  - Cyrillic
  - Hindi
- Adding EAI proxy addresses or accepted domains in Exchange is not supported
Exchange 2019 system requirements (1:03:00 mins)
- Windows Server 2019
- .NET Framework 4.7.2 (preinstalled with Windows Server 2019)
- Forest functional level of Server 2012 R2
- 128 GB minimum RAM (64 GB for Edge)
- Minimum coexistence is Exchange 2013
- For more information see – Exchange Server System Requirements
Future plans & roadmap (1:05:15 mins)

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Hybrid Exchange: Making it easier and faster to move to the cloud
In this session, Jeff Kizner discusses all the advancements coming to Exchange hybrid. Topics include:

Future vision for hybrid (3:30 mins)
Administration challenges (6:00 mins)
Organization Configuration Transfer (“OCT”) (7:30 mins)
- Version 1 released June 2018
- Performs a one-time transfer of the following objects (and skips any named policy if it exists in the tenant already):
  - Retention policy
  - Retention policy tags
  - OWA mailbox policy
  - Mobile device mailbox policy
  - ActiveSync mailbox policy
Jeff demos OCT Version 2 (9:00 mins)
- Hybrid key acquisition built into the hybrid configuration wizard (“HCW”)
- Tip: Pressing F12 in the HCW gives you easy access to logs & PowerShell
- Version 2 grants the administrator the ability to resolve conflicting policies
- Rollback_OCT script available in the logging folder.
  - This gives you the PowerShell to reverse changes made by OCT
- Version 2 adds the following objects into one-time transfer:
  - DLP policy
  - Organization configuration
  - ActiveSync device access rules
  - ActiveSync organization settings
  - Malware filter policy
  - Policy tips
  - Address lists
Demo of the new Hybrid Agent (24:15 mins)
- Designed to establish hybrid with zero inbound connections from the cloud (no firewall, DNS, or, certificate changes required)
- Utilizes Azure App Proxy technology
- Demo of free/busy & MRS moves with Exchange on-prem not published over HTTPS 443
- Demo of the following configuration in Exchange Online
  - Get-OrganizationRelationship shows TargetSharingEpr configured with a Microsoft owned endpoint (not your on-prem endpoint)
  - Get-MigrationEndPoint shows RemoteServerAddress configured with a Microsoft owned endpoint (not your on-prem endpoint)
  - Set-OrganizationRelationship with TargetSharingEpr can override the autodiscover configuration for intra-org sharing
Hybrid Agent architecture overview (32:50 mins)
- Hybrid Agent installed on-prem & talks to Hybrid Proxy Service in the cloud
- Hybrid Agent only needs outbound HTTPS 443 for mailbox moves & HTTP 80 for CRL checks
- Each hybrid agent gets a unique Hybrid Proxy Service URL
  - URL formed from a randomly generated GUID
  - GUID can only be found in your on-prem logs or your Office 365 tenant
  - GUID combinations are 2 power of 22
  - Hybrid Proxy Service URL is locked down to just the Exchange Online IP addresses
  - Currently available in private preview
Hybrid Agent – Free/Busy lookups (36:05 mins)
- Free/busy lookups from on-prem to cloud go directly to the internet
- Free/busy lookups from cloud to on-prem use Hybrid Agent
Hybrid Agent – Mailbox migrations (37:05 mins)
- Always uses the hybrid agent
Jeff demos setup of the Hybrid Agent (37:20 mins)
- HCW asks if you want:
  - Classic Hybrid – same hybrid we use today
  - Modern Hybrid – automatically downloads & starts the Hybrid Agent install process
- Install process
  - Download the agent
  - Install the bits
  - Register agent
    - This generates a certificate for your tenant that can only be used by you
  - Configure agent
    - Certificate valid for 180 days
    - Certificate auto rolled 30 days before expiration
    - Private key is non-exportable
    - Agent identifies a URL to use
  - Validate agent
    - Tests migration endpoint availability
  - Complete configuration
    - Set organization relationship (TargetSharingEpr, etc.)
Hybrid Agent Version 1 (43:40 mins)
- Supports hybrid free/busy and mailbox moves only
- Version 1 for new hybrid setups only
- Install 3 or more agents for high availability
- Dedicated servers not required (install the agent on existing Exchange servers)
- Hybrid Agent can be installed in DMZ but required HTTPS back to Exchange on-prem servers
- Hybrid Agent will auto-update
Demo solving hybrid Send As with the Hybrid Agent (49:15 mins)
Q&A from the audience (55:00 mins)
- Can we control the updating of the Hybrid Agent?
- Can we have a PowerShell version of the OCT?
- What is the scalability of the Hybrid Agent?
- Can RBAC be integrated into OCT & Hybrid Agent?
- How can I get rid of Exchange on-prem?
- Would the Hybrid Agent eliminate the need to keep Office 365 URLs & IPs up to date on our firewall?
- Does the Hybrid Agent support multi-forest?
- How does the Hybrid Agent work with organizational sharing of free/busy?
- When is the Hybrid Agent expected to GA?
- Do I still need a 3rd-party SSL cert for on-prem Exchange servers in hybrid?
- Will there be a path from classic to modern hybrid?
- Will the hybrid agent support multiple geographically dispersed migration endpoints?
- Are there any advantages to sticking with the classic hybrid?
- Is the private preview of the Hybrid Agent fully supported?
- Does the Hybrid Agent remove the requirement to publish Autodiscover on-prem?
- Will hybrid Send As work in multi-forest?
- Will hybrid Send As be available in the classic hybrid?
- Does the Hybrid Agent eliminate all DNS changes I need to make to go to Office 365?

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Deploying Outlook mobile securely in the enterprise
In this session, Ross Smith IV discusses how to secure the Outlook mobile app for Exchange online and on-prem mailboxes using various technologies. Topics include:

Current Outlook mobile connectivity model for online & on-prem (2:50 mins)
Future Outlook connectivity model will consolidate all Outlook clients to just 2 protocols (5:10 mins)
- Proprietary and REST protocols to be replaced by Hx starting EOY
- Outlook Mac, Outlook Mobile & Windows 10 clients will all use Hx
  - Removes the need of the stateless protocol translator
- Outlook Windows will continue to use MAPI/HTTP
ADAL authentication for Exchange online & on-prem mailboxes (7:20 mins)
Outlook mobile authentication explained (federated identity) (9:00 mins)
- Required for user-based certificate authentication
Hybrid modern authentication (HMA) for on-prem mailboxes (11:55 mins)
- Outlook Mobile only makes connections to Exchange Online
- MRS syncs data between Exchange online and on-prem with ActiveSync
- Ability to lock down on-prem ActiveSync to IPs for AutoDetect & Exchange online
Securing with Conditional Access (16:15 mins)
Require Outlook mobile as the exclusive messaging client with conditional access (19:30 mins)
- Utilizes required approved client app
- Use two conditional access policies
  - 1st policy matches either iOS or Android using modern auth and forces them to use Outlook mobile
  - 2nd policy matches for ActiveSync using basic auth and forces them to use Outlook mobile
  - In this config Exchange online will quarantine basic auth ActiveSync
Sign-in conditional access (26:50 mins)
- Requires Azure Identity Protection
- Can block Outlook mobile access based on leaked credentials or suspicious sign-ins
- Possible action can force a password reset via SSPR
InTune MDM (30:25 mins)
- Android for Enterprise (Android 5.0) is a container for corporate apps & data
- Isolates corporate and personal data
InTune App Protection (35:25 mins)
- Protects the individual apps without enrolling the device
- Control access to app & data
- Controls movement of data
- Selective wipe of the app (by admin, user, or, offline interval)
- Corporate data encrypted independent of device-level encryption
- Personal or unmanaged data is untouched
Application configuration policies (47:00 mins)
- Allows for the configuration & management of apps (e.g. Outlook mobile email account config)
New Outlook mobile admin experience in InTune (52:00 mins)
Securing data in Office 365 (53:30 mins)
- Lockbox (just in time) for Office 365 engineers
- TLS 1.2 encryption for data in flight
- BitLocker for data at rest
- Service encryption for data at rest in Exchange Online
Azure Information Protection now Microsoft Information Protection (57:00 mins)
- Discover & classify sensitive data
- Apply protection (encryption, restriction, watermarks), governance (retention, deletion, archiving), and monitoring (alerts).
- Outlook mobile can set & see sensitivity labels
- Estimated release Q2 2019
Demo on conditional access policies & user experience (59:00 mins)

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Exchange 2019 Public Preview Released

July 31, 2018 By Gareth Gudger 3 Comments

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Last week Microsoft announced the public preview of Exchange 2019. It is expected that Exchange 2019 will ship later this year.

You can download the preview bits using the link below. Please note, that this is preview code and you should not deploy this in production.

Exchange 2019 Public Preview

Server Core supported for Exchange 2019

The biggest announcement is that Exchange 2019 is the first version of Exchange to work on Windows Server Core. The benefit of Server Core is added security. Server core reduces your attack footprint and a smaller footprint means fewer things to secure and keep up to date.

It’s worth noting that from an administrative standpoint Server Core is a bit of a different animal. If you access Server Core via a console or remote session you are only going to see a command line. You will quickly notice that programs which use an MMC, such as Services or Event Viewer, are unavailable. In addition, shell programs such as Windows Explorer, or, Task Manager are also unavailable.

For Exchange, this is not much of an issue because the Exchange Admin Center and Exchange Management Shell can be run remotely from anywhere. For everything else, you will need to use Remote Server Administration Tools or remote PowerShell. For a list of tools that are directly accessible on Server Core check out the article: What is the Server Core installation option in Windows Server?

For a great write-up on installing Exchange 2019 on Windows Server Core, check out this article from the Exchange Team.

Of course, if you prefer to have the full desktop experience you can still install Exchange 2019 on a server with a GUI. [Read more…] about Exchange 2019 Public Preview Released

Cumulative Update cannot find EnterpriseServiceEndpointsConfig.xml

July 7, 2018 By Gareth Gudger Leave a Comment

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While applying a cumulative update I ran across the following error.

Warning:
An unexpected error has occurred and a Watson dump is being generated: Could not find a part of the path 'C:\Windows\Temp\ExchangeSetup\bin\EnterpriseServiceEndpointsConfig.xml'.

The Exchange setup log essentially repeated this same error, without any additional clues. The C:\Windows\Temp\ExchangeSetup\ folder is a staging area used by setup to unpack temporary files. These files are copied to this temporary location during the ‘Initializing Setup’ and ‘Copying Files’ steps.

When navigating to this folder it became apparent that not only was the file in question missing but the entire parent folder too. [Read more…] about Cumulative Update cannot find EnterpriseServiceEndpointsConfig.xml

Exchange Cumulative Update hangs during setup finalization

July 7, 2018 By Gareth Gudger 1 Comment

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When performing a cumulative update on Exchange 2013 I ran into an issue where the finalization step was hanging as 45%.

When I checked the Exchange Setup logs I saw the following repeated over and over.

Service  'MSExchangePOP3BE' failed to reach status 'Running'  on this server after waiting for '25000' milliseconds.
[WARNING] Service checkpoint has not progressed. Previous checkpoint='0'- Current checkpoint='0'.
Previous service status query time is '7/5/2018 1:35:37 AM'.
Current service status query time is '7/5/2018 1:36:02 AM'.
Will wait '25000' milliseconds for the service 'MSExchangePOP3BE' to reach status 'Running'.

In this instance, the Exchange setup was unable to start the POP3 backend service. Attempting to start the service manually through the Services MMC also failed. Upon checking the System Event Log the following error was reported.

The address is already in use. Binding: 0.0.0.0:9955.

This error indicates something else was already listening on port 9955, which was preventing the POP3 backend service from starting (and setup from completing). [Read more…] about Exchange Cumulative Update hangs during setup finalization

Web Management Service (WMSvc) could not be started: 2147483640

July 5, 2018 By Gareth Gudger Leave a Comment

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While upgrading an Exchange 2013 server to the latest cumulative update, I ran into the following error while setup was configuring prerequisites.

Service 'WMSVC' failed to reach status 'Running' on this server.

When attempting to start the service manually via the Services MMC, it refused to start, resulting in the following error.

Windows could not start the Web Management Service on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code -217483640.

When reviewing the System Event Log an equally cryptic error was displayed.

The Web Management Service service terminated with the following service-specific error: Unspecified error

Exchange June 2018 Updates

June 19, 2018 By Gareth Gudger Leave a Comment

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Today was a big day for Exchange updates. Not only did we get Cumulative Update 10 for Exchange 2016, but we also got Cumulative Update 21 for Exchange 2013. Exchange 2010 also receives a critical update in rollup 22.

As always, test these updates in a lab first! I recommend checking out this 7-part guide on configuring Exchange in your lab. It doesn’t take much to get one going.

The updates are as follows:

Exchange 2016 Cumulative Update 10 | KB4099852 | UM Language Pack

Exchange 2013 Cumulative Update 21 | KB4099855 | UM Language Pack

Exchange 2010 SP3 Rollup 22 | KB4295699

Exchange 2013 enters extended support

In case you missed it Exchange 2013 entered into extended support on April 10th. Cumulative Update 21 is the last planned update for Exchange 2013 and no further product development is expected. Any cumulative update after 21 is at Microsoft’s discretion. However, security and timezone updates will continue to be available until April 11th, 2023, delivered primarily through the Windows Update Catalog.

As a reminder, Exchange 2010 has less than 18 months of extended support remaining. After January 10th 2020, no further technical support or updates will be available. This includes security, bug and time zone updates. If you are still on 2010, I would recommend planning a migration to Exchange 2016 or Office 365 as soon as possible.

So, what’s new in these Cumulative Updates?

One prerequisite change is the need to install Visual C++ 2013. This is required for a third party software component–that manages WebReady document viewing and data loss prevention–which ships in these updates. Visual C++ 2012 was the previous requirement for older cumulative updates. However, Visual C++ 2012 was installed automatically by the Unified Communication Management Agent (another Exchange prerequisite), so it never required administrator intervention. This means Visual C++ 2013 will also be a requirement for new server installations.

Exchange 2010 received a significant update in this release, which is the ability to leverage Windows 2016 domain controllers and global catalog servers. While 2016 DCs could exist in an Exchange 2010 environment, Exchange 2010 would simply not use them. With this update, 2010 will now leverage 2016 domain controllers and allow for the domain and forest functional levels to be raised to Windows Server 2016. This will allow you to eliminate all older domain controllers.

These updates contain a lot of security and bug fixes. Aside from the May 8th security update each cumulative update includes time zone updates and a dozen bug fixes. Check the appropriate KB article above for a list of issues each update resolves. [Read more…] about Exchange June 2018 Updates

Exchange

So, what’s new in these Cumulative Updates?

Server Core supported for Exchange 2019

Exchange 2013 enters extended support

So, what’s new in these Cumulative Updates?

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