Domain (DNS) Configuration (Exchange 2013)


In order for your Hosted Exchange service to function correctly and to take advantage of all the features offered by Exchange, you must have specific DNS records on your domain.

The various DNS records you will require and how to add these records to your domain is explained in the below step-by-step guide.

Overview

There are 4 records required for full functionality of the Cobweb Hosted Exchange platform. It is recommended to add all 4 to each domain you are using on our platform. 

Below are the 4 records required. For more information on each record, please select the relevant tab.


MX Records

Type: MX
Hostname: @ (or blank if not supported)
Priority: 10
Mail Exchanger: cluster3.eu.messagelabs.com.
TTL: 3600 (or provider default)

Type: MX
Hostname: @ (or blank if not supported)
Priority: 20
Mail Exchanger: cluster3a.eu.messagelabs.com.
TTL: 3600 (or provider default)


Autodiscover Record

Type: CNAME
Hostname: autodiscover
Destination: autodiscover-redirect.hs20.net.
TTL: 3600 (or provider default)


SPF Record

Type: TXT
Hostname: @ (or blank if not supported)
Value: v=spf1 include:spf.messagelabs.com -all
TTL: 3600 (or provider default)


If you have any questions regarding the above or any aspect of your service, please consult the Knowledgebase or contact us on support@cobweb.com.

MX Records

Mail Exchanger (MX) records are used to route emails sent to your domain to the Cobweb Hosted Exchange platform, effectively acting as an address for all emails.

In order to avoid disruption to your current mail service, you should not change your MX records until you are ready to start using your mailboxes with Cobweb.

Below are the Cobweb MX records that will need to be applied to your domain:


Type: MX
Hostname: @ (or blank if not supported)
Priority: 10
Mail Exchanger: cluster3.eu.messagelabs.com.
TTL: 3600 (or provider default)

Type: MX
Hostname: @ (or blank if not supported)
Priority: 20
Mail Exchanger: cluster3a.eu.messagelabs.com.
TTL: 3600 (or provider default)


It is important that the Priority are set correctly for the records.

If you have any questions regarding the above or any aspect of your service, please consult the Knowledgebase or contact us on support@cobweb.com.

Autodiscover Record

Autodiscover records allow many features within an exchange environment to function correctly. Features which Autodiscover CNAME enables:

  • Free/Busy information in your calendar

  • Out of Office auto response messages

  • Synchronisation of Offline Address Book

  • Folder sharing with sending out the sharing invitations

  • Outlook automatic account configuration

  • Outlook for Mac setup (EWS)

Seamless upgrades between Exchange Servers

The Hosted Exchange 2013 Autodiscover record will need to be added to your domain as a CNAME record and can be found below:


Type: CNAME
Hostname: autodiscover
Destination: autodiscover-redirect.hs20.net.
TTL: 3600 (or provider default)


It is important to retain the period '.' at the end of the destination, as many providers will handle the record incorrectly if this is missing.

If you have any questions regarding the above or any aspect of your service, please consult the Knowledgebase or contact us on support@cobweb.com.

SPF Record

All email accounts on the Hosted Exchange platform are protected by MessageLabs, a comprehensive antivirus and anti-spam protection suite. As part of Cobweb and MessageLabs' continued efforts to ensure maximum data integrity and protection, all domains hosted by third parties (and utilised on Cobweb email accounts) must have an SPF record configured.

An SPF (Sender Policy Framework) record is a measure of protection against email spoofing. It specifies which servers have the facility to send from your email accounts, negating the possibility of someone using your address to send out unsolicited email.

To set up SPF protection, you (or your domain provider) will need to set up a text (TXT) record worded as follows:


Type: TXT
Hostname: @ (or blank if not supported)
Value: v=spf1 include:spf.messagelabs.com -all
TTL: 3600 (or provider default)


If you use your email domain for email services outside of the Cobweb Hosted Exchange platform, this record should be updated to reflect this. This may include bulk marketing or alerting system. Please consult with the providers for your other email services how to add their service into your SPF record.

If you have any questions regarding the above or any aspect of your service, please consult the Knowledgebase or contact us on support@cobweb.com.

How to Add DNS Records

You will need to contact your DNS provider to setup the DNS records. To do this:

  1. Go to http://who.is

  2. In the search box enter your domain name and click the search icon.

  1. Your domain host will be shown in the name field under the Registrar info section.

  1. To contact your DNS provider go to the Referral URL where you will find their contact information.

  2. Provide your Domain Provider with the Cobweb Hosted Exchange DNS records.