The autodiscover functionality of Mircosoft Exchange requires the use of SRV records in DNS. Since it appears there are a fair number of PowerDNS users asking this particular question without getting a clear answer, we thought we’d help out.
If you’re running the PowerAdmin front end to PowerDNS and want to make an autodiscover SRV record, it looks like this. For the example domain srvrecord.com with an Exchange server running at mail.srvrecord.com, the autodiscover entry would be:
- Name: _autodiscover._tcp
- Type: SRV
- Content: 100 443 mail.srvrecord.com
- Priority: 0
- TTL: 3600
In the content field, the first number is the weight, the second number is the TCP port (typically 443). You may change the weight to suit your own needs. You may also change the priority and TTL values to suit your particular situation. These are just example values. Here’s a screen shot.
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