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Microsoft Automatic Email Service Discovery

zootzone.com supports Microsoft's automatic email account configuration protocol, using the SRV resource record extension.

Microsoft's explanation is available at this location:

https://support.microsoft.com/en-us/help/940881/a-new-feature-is-available-that-enables-outlook-2007-to-use-dns-service-location-srv-records-to-locate-the-exchange-autodiscover-service

Follow the steps outlined below to enable auto-discovery for your domain.

The domain example.com is used for illustrative purposes. Replace this with your own domain.

Create _autodiscover SRV Resource Record in DNS

Either log into the control panel, or send a support request to the DNS service provider of your domain.

Create (or request the creation of) the following SRV resource record in your domain's DNS database/zone.

The SRV record's information should match the following:

Service: _autodiscover
Protocol: _tcp
Port Number: 443
Priority: 0
Weight: 0
Host: auto.zootzone.com

If your provider's DNS control panel rejects the above-mentioned Priority and Weight values, then use identical positive integer values like 1, 5, or 10 instead of 0.

Using the details above creates the following SRV record:

SRV : _autodiscover._tcp.example.com -> 0 0 443 auto.zootzone.com

You may have to wait a while for the new record to be accessible by other computers.

Important:

  • If you are migrating between email providers and wish to update this data in the near future, set the TTL (Time To Live) option to a few minutes.
  • Once the migration is complete, raise the TTL value back up to an hour, or a day.

Auto Configuration Steps

The above SRV resource record will direct Outlook to the following auto-discovery location:

https://auto.zootzone.com/autodiscover/autodiscover.xml

via the auto-discovery process below.

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2
3
4

Look-up the SRV resource record for _autodiscover._tcp.example.com in DNS.

This returns the result 0 0 443 auto.zootzone.com

5

Outlook asks permission to continue with auto-discovery by POST-ing to:

https://auto.zootzone.com/autodiscover/autodiscover.xml

This succeeds.