Re: Re: Strange ports

From: Bojan Zdrnja (bojan.zdrnja@gmail.com)
Date: Sat Jun 23 2007 - 03:19:56 EDT


On 6/23/07, Thor (Hammer of God) <thor@hammerofgod.com> wrote:
> If you use Exchange (well, specifically, if Exchange is doing the DNS
> lookup) then you do need TCP 53 as Exchange SMTP (or IIS SMTP) uses TCP by
> default for DNS queries. This is actually a good thing, as it is easier to

TCP by default? So you are saying that Exchange doesn't use system's
resolver but instead has an internal one?
This is pretty interesting, can you point to Microsoft's documentation
about this?

Cheers,

Bojan

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