1. 06 | Planning Exchange Online and Configuring DNS Records
Anthony Steven | Principal Technologist, Content Master
Martin Coetzer | Portfolio Architect, Microsoft

2. Module Overview
Configure DNS Records for Services

3. Plan for Exchange Online
Plan for Data Loss Prevention
Plan for Exchange Online Administration

4. Exchange Online Feature Requirements
6: Planning Exchange Online and Configuring DNS Records
Architecture
Current system
Features
User requirements
Usability
Reliability
Security
Manageability
Regulatory

5. Common Exchange Online Planning Factors
6: Planning Exchange Online and Configuring DNS Records
Mailbox sizes
Bandwidth
Directory health
Mail delivery
Domain Name System
Communications and Training
Blocked file types
This slide is not meant to provide detailed planning guidance, but to identify the common factors with all migration or coexistence plans.

6. Plan Client Requirements
6: Planning Exchange Online and Configuring DNS Records
Consider the following general issues when planning client requirements:
Go through the different planning factors and the table in the topic. Explain that this is an overview of the different client options and some of these are covered in the Office 365 ProPlus module as well.
Versions
Platform type
Operating system or mobile operating system
Client type
Browser type
User requirements
User location
Connection type
Bandwidth
Deployment
Training
Management

7. Plan for Outlook Web Access
6: Planning Exchange Online and Configuring DNS Records
Do you want OWA enabled or disabled globally?
Do you want to enable or disable it by user?
Do you want to enable or disable OWA on mobile devices?
How many different OWA policies do you need and with what settings?
Which features do you want to enable or disable by default?
What browsers will users have to access OWA?
Do you want to enable or disable offline usage?
Highlight how OWA is automatically set up and easy to configure through the Admin console or EMC.

8. Plan for Exchange ActiveSync
6: Planning Exchange Online and Configuring DNS Records
Do you want EAS enabled or disabled globally?
Do you want to enable or disable it by user?
How do you want to control security on mobile devices?
How many different EAS policies do you need and with what settings?
Which settings do you want to enable or disable by default?
What policies will apply to users’ personal devices?
Run through the planning decisions about EAS that they need to consider.

9. Plan for eDiscovery and In-Place Hold
6: Planning Exchange Online and Configuring DNS Records
Are eDiscovery and in-place hold policies required?
On which mailboxes?
What information should be harvested?
How many discovery mailboxes are required?
Is legal hold supported in the subscription?
How many days should items be held?
Who will have rights to view eDiscovery items?
Explain that this topic is just intended to be a summary of the feature, not an in-depth explanation. Keep the highlight on the planning factors and point students to the URL. There will be more on implementing this feature in the next module.

10. Plan for Data Loss Prevention
6: Planning Exchange Online and Configuring DNS Records
What information must we protect?
How can be best protect that information?
How is the data formatted?
What do we want users to be able to do if there is a policy match?
What levels of auditing must we apply?
Does the DLP policy need timings defined?
Explain that this topic is just intended to be a summary of the feature, not an in-depth explanation. Keep the highlight on the planning factors and point students to the URL. There will be more on implementing this feature in the next module.

11. Plan for Retention Do we need retention policies?
6: Planning Exchange Online and Configuring DNS Records
Do we need retention policies?
Can we just use the default settings?
Do we need additional policies and tags?
To which users should retention polices apply?
Explain that this topic is just intended to be a summary of the feature, not an in-depth explanation. Keep the highlight on the planning factors and point students to the URL. There will be more on implementing this feature in the next module.

12. Plan for Journaling Who to journal What to journal
6: Planning Exchange Online and Configuring DNS Records
Who to journal
What to journal
Where to send the journal messages to
Where to send journal NDRs
Explain that this topic is just intended to be a summary of the feature, not an in-depth explanation. Keep the highlight on the planning factors and point students to the URL. There will be more on implementing this feature in the next module.

13. Plan for Archiving Client compatibility Availability Compliance
6: Planning Exchange Online and Configuring DNS Records
Client compatibility
Availability
Compliance
Training
Policies
Again, explain that this topic is just intended to be a summary of the feature, not an in-depth explanation. Keep the highlight on the planning factors and point students to the URL. There will be more on implementing this feature in the next module.

14. Plan for Mail Delivery with Hybrid Exchange
6: Planning Exchange Online and Configuring DNS Records
Incoming routing
Through on-premises – no change to DNS MX records and on-premises forwards messages to online mailboxes
Through EOP – process depends on whether centralized message handling is enabled
Outgoing routing
Direct to recipient – when centralized message handling is disabled
Through on-premises - when centralized message handling is enabled

15. Plan for Exchange Online Protection
6: Planning Exchange Online and Configuring DNS Records
External global domains
Cloud-only
Hybrid
On-premises only
EOP with Exchange Online
EOP Standalone
Incoming and outgoing
Centralized Mail Handling
MX=EOP
MX=EOP or
on-premises
Go through the delivery options for the three scenarios. Explain that the slide does not show all those options but trace out the possible paths.

16. Plan for Exchange Online Administration
6: Planning Exchange Online and Configuring DNS Records
Confirm you know what you want Exchange Online to achieve
Create or apply a change management framework
Set up a change log system to record changes
Record any changes to the environment to the documentation system
Identify administrative roles and tasks
Map roles and tasks to existing role groups
Define additional administrative role groups as required
Identify training requirements for administrators and deliver training
Assign users to administrative role groups
Monitor the environment
Go through each of the stages and ensure the students understand the flow.

17. Configure DNS Records for Services
Recommendations for Configuring DNS Records

18. DNS and Office 365 Services
6: Planning Exchange Online and Configuring DNS Records
Service
Record
Function
Office 365
CNAME
Directs authentication to the right identity platform. Speeds up authentication, otherwise clients will authenticate to Office 365 in the USA.
Domain verification
TXT
Verifies domain ownership. No other function.
Exchange
Online
Enables autodiscover for Outlook clients MX
Routes incoming mail to Exchange online
SPF (TXT)
Sender Policy Framework anti-spam
Exchange Federation
Enables Exchange federation in hybrid environments
Provides mail delivery with Exchange federation
Provides autodiscover for easy client connection with Exchange federation
SharePoint
Redirects to public web site for domain
Lync
SRV
Enables SIP federation
Coordinates information flow between clients
Redirects Lync online client sign-in
Redirects Lync online mobile client sign-in
SSO
Host (A)
Publishes SSO ADFS server address
Take some time to explain the functionality that DNS provides for the Office 365 services.

19. DNS Record Changes Document the planned changes
6: Planning Exchange Online and Configuring DNS Records
Document the planned changes
Have someone else review the planned change
Use a low TTL value
Remember to inform your users of possible service disruption
Carry out the proposed change on a Friday evening
You might want to demonstrate some online tools here, such as dnscheck.pingdom.com. Explain what is happening and note that you may get reverse DNS errors with default domains.

20. Hosting Multiple Domains
6: Planning Exchange Online and Configuring DNS Records
Option
Process
Single Default Domain
Use the domain you get when you sign up for the service
Single custom domain
Add a single external domain that you add after signup or as part of the Deploy Phase of the FastTrack process
Single custom root domain with subdomains
Add the root domain then the subdomains
Multiple custom domains, no subdomains
Add the root domains independently
Multiple root domains with multiple subdomains
Add the root domain then the subdomains from that root. Add other root domains independently followed by their subdomains
Take a while to explain the different options in this topic. You might want to use the whiteboard to draw out the domain/subdomain relationships and identify where user accounts might reside.

21. Demo: Regisitering a DNS Domain

22. Troubleshoot DNS Records
20346A
Troubleshoot DNS Records
6: Planning Exchange Online and Configuring DNS Records
Changing DNS records too soon
Typographical errors on records
Port errors in DNS records
Replication timings
Review the possible errors and identify mechanisms to check for DNS errors.

23. Recommendations for Configuring DNS Records
6: Planning Exchange Online and Configuring DNS Records
Plan every change to DNS in detail
Take extra care with MX records
Work with a reliable cloud partner
Communicate with users
Summarize the best practice recommendations and add any further ones of your own.

24. Module Review
Configure DNS Records for Services