Do I need a reverse DNS zone in AD

We just configured a new network with a new AD in 2012 rw. One of my coworkers created a reverse DNS zoe in AD .  I am wondering if we need that in the domain. We have no mail servers on site. I was told that reverse DNS zones can create issues and they are often problematic.  So, do we really need a reverse DNS ? And do they create issues no and then?
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Cliff GaliherCommented:
There is no core windows functionality that requires reverse DNS. However some applications may benefit from it as well as providing other administrative benefits. I can't think of any issues that would exist when the zone is properly created and maintained, however, so I find that particular reasoning flawed.

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DrDave242Senior Support EngineerCommented:
We have no mail servers on site.
This doesn't actually matter. Mail servers do often use reverse DNS, but only public reverse DNS; a reverse zone on your internal DNS servers wouldn't be used by a mail server at all.

You don't need one, but it won't hurt anything by being there.
netcompAuthor Commented:
We have a good number of Mac comptuers and few linux  boxes and someone is saying that Mac and linix machines used reverse dns a lot and they need it . It just does not make sense to me . Does that make sense to you?
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Cliff GaliherCommented:
Depending on the applications in use, it is certainly possible.
DrDave242Senior Support EngineerCommented:
I'm not that familiar with Mac or Linux machines, so I can't comment on that specifically, but there's no harm in leaving the zone there. It really won't cause any problems.
Without reverse DNS NSLookup will be unable to identify the DNS host names.  It's not going to effect functionality but you'll get that annoying error "default Server Unknown" .  It's also nice to have reverse DNS so your clients can auto register PTR which can be helpful when trying to identify what host an IP corresponds with.  I always configure a reverse DNS zone - it doesn't hurt and provides some additional functionality that I find useful.
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