Re: outgoing mail is ok, incoming does not work

Open the router and forward the ports you need to the ip of your
external nic. I think 25, 80, 443, 444, and 4125 would be a good
start.

"Oscar" <asta@xxxxxxxxxxxx> wrote:

>
>
>"Paul Campanale" wrote:
>
>> Oscar,
>> Assuming you have installed ISA on the SBS, I would configure your router to
>> pass all incomming requests to the SBS external nic IP.
>
>Thanks Paul for the reply - as I mentioned before I had the SBS install only
>for a few days and it is all quite new to me. Had a quick look in the router
>manual and there it mentions 'Port Forwarding to Local Servers' - is that
>what you mean? Forward Port 25 to the servers external NIC address?
>
>> If you're concerned
>> about security or have not installed ISA, you may configure your routter to
>> simply "conduit" all port 25 traffic to the IP of the external nic. If this
>> fails, your ISP may very well be blocking inward bound port 25 traffic. But
>> honestly, it doesn't make sense why they would block inward traffic, I can
>> understand ouward traffic, which you say is working.
>
>Have tested it again and outward emails are working, but can't receive
>inbound emails.
>Following is an excerpt from the ISP's correspondence re Port 25 blocking:
>quote ............ The first step is the closure of Port 25 on 13th April
>2004. Although some businesses use Port 25 to run their own email systems,
>spammers also use it to send Spam disguised as normal emails. Shutting down
>Port 25 will stop this kind of spamming. For more details on this initiative,
>please click here:
>http://bigpond.custhelp.com/cgi-bin/bigpond.cfg/php/enduser/std_adp.php?p_faqid=5562.
>If you are a business or specialist who uses Port 25 to send legitimate
>emails, simply select one of these Static IP services (etc etc) ........
>end-quote
>
>Noticed one more thing when I tried remote access to the network. Using IE6
>and entering https://c8086.dyndns.org/remote (this should get me the remote
>login screen) I get a "page cannot be displayed" message, same message for
>https://c8086.dyndns.org, however if I use http://c8086.dyndns.org I get the
>login screen of my router. Any significance in that?
>
>> This leads me to suspect the problem is your router.
>> Good luck.
>> Paul
>>
>> "Oscar" wrote:
>>
>> >
>> > "Oscar" wrote:
>> >
>> > There are currently only 2 workstations, both running XP
>> > > Pro SP2 (Firewall disabled) and Office 2003.
>> >
>> > Just one correction to what I said above - looking at 'network connections'
>> > on the PC's it says 'Connected, firewalled' - so guess the SP2 firewall is
>> > running on the PC's.

Jim B. SBS MVP
I don't have much to say but it can be found here
http://msmvps.com/bgb/
.

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