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| Subject: | Re: Re: Strange ports |
|---|---|
| Date: | Sat, 23 Jun 2007 19:19:56 +1200 |
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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