Re: opening firewall ports on multiple IP mail server

anonymous_at_discussions.microsoft.com
Date: 08/10/04 

Date: Mon, 9 Aug 2004 17:51:23 -0700

OK, what about POP3? Similar deal, I still need to open
the firewall ports for each of those addresses, too.

Dana

>-----Original Message-----
>Hi Dana,
>
>Ports are opened automatically once some application
listens on that port
>(like SMTP in your case). Just "opening" it won't do any
good -- service has
>to listen on it to receive the data.
>I am not sure why you would need more then one IP to
listen for SMTP
>traffic. Even with one IP you can receive SMTP traffic
for all domains, you
>just have to setup MX records so that for all domains
they point to that one
>IP.
>
>If you are using IIS SMTP you have to create additional
SMTP Virtual Servers
>for every domain that you host. To each SMTP Virtual
Server you assign one
>IP from your pool (144-148) and start the services. This
will open up the
>ports for you.
>
>I hope this helps,
>
>Mike
>
>"Dana Netz" <anonymous@discussions.microsoft.com> wrote
in message
>news:279401c47dc2$c0cd3d60$a601280a@phx.gbl...
>> Howdy,
>> We have a Server 2003 machine that has multiple IP
>> addresses to service several mail domains. The primary
>> address for the machine is .133 and it is hosting mail
>> services on addresses .144 thru .148. How can I open
>> ports for the other IPs? I open port 25, for example
>> on .144 and the system won't let me open port 25
>> on .145. Or should I try? If I only need to open one
>> port then which address should it be?
>>
>> Thanks in advance. Dana
>>
>>
>
>
>.
>

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