RE: Problem publishing port

  • From: "Thor" <thor@xxxxxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Mon, 1 Nov 2004 08:23:04 -0800

Jim is right-- you'll never get direct connections from other SMTP servers... But, if you have a friend somewhere running IIS who doesn't mind the bandwidth, you can set your MX record to deliver to his/her IIS SMTP service, and have him configure his/her SMTP delivery to use a smart host at your IP after setting the outbound connections to use TCP26. That way, his SMTP service will grab all the messages on 25, but send them to you on 26.

T

----- Original Message ----- From: "Marvin Cummings" <marvinc@xxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Monday, November 01, 2004 7:47 AM
Subject: [isalist] RE: Problem publishing port



http://www.ISAserver.org

Figured as much but was hoping...

thanks


On Sun, 31 Oct 2004 00:09:43 -0700, Jim Harrison <jim@xxxxxxxxxxxx> wrote:
http://www.ISAserver.org

No.. no.. no.. yourself.
You'll never receive a single piece of mail while you're using TCP:26.
If you want to receive mail from Internet servers, you'll have to either
get a different ISP or buy a business service from them.



 Jim Harrison
 MCP(NT4, W2K), A+, Network+, PCG
 http://isaserver.org/Jim_Harrison/
 http://isatools.org
 Read the help / books / articles!

-----Original Message-----
From: Marvin Cummings [mailto:MarvinC@xxxxxxxxx]
Sent: Saturday, October 30, 2004 6:58 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Problem publishing port

http://www.ISAserver.org

No...No no no...
My ISP is blocking port 25 and preventing me from sending and
receiving email from my exchange server. So I'm trying to figure a way
to get around this. I've managed it to get to where I can send mail
but I can't get anything coming in. One option was to configure the
exchange server to accept traffic on port 26, which I'v done by adding
that port to the default smtp virtual server. I now need to open port
26 on the isa server and map it to the exchange server. I tried to do
this by going to my published smtp rule and specifying it in the
traffic port settings as follows:
Publish on this port instead...: 26
Send requests to the default...

This didn't seem to work. So I'm trynig to figure if I'm doing
something wrong or something that's not possible in ISA?

thnks

On Sat, 30 Oct 2004 16:34:23 -0700, Jim Harrison <jim@xxxxxxxxxxxx>
wrote:
> http://www.ISAserver.org
>
> Let me get this straight; your ISA is listening on TCP:26 to receive
> mail from the Internet?
> You'll never receive a single item this way, because all email servers
> send to TCP:25.
> It's one of those neato things that makes email work.
>
>
>
>  Jim Harrison
>  MCP(NT4, W2K), A+, Network+, PCG
>  http://isaserver.org/Jim_Harrison/
>  http://isatools.org
>  Read the help / books / articles!
>
> -----Original Message-----
> From: Marvin Cummings [mailto:MarvinC@xxxxxxxxx]
> Sent: Saturday, October 30, 2004 1:57 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] RE: Problem publishing port
>
> http://www.ISAserver.org
>
> Yes the Exchange server is a SNAT client and there is no error
> appearing at the client as I can send mail fine. The problem is on the
> external side and getting the ISA server to receive the mail on a
> different port and then publishing it to exchange on the specified
> port.
> I used gmail to try and send test mail to my published server. It
> receives the mail delivery error.
>
> thanks
>
> On Sat, 30 Oct 2004 07:21:54 -0700, Jim Harrison <jim@xxxxxxxxxxxx>
> wrote:
> > http://www.ISAserver.org
> >
> > Is the Exch server a SecureNAT client?
> > What is the error seen at the client?
> > What is in the ISA logs for those requests?
> > What are you using to test the connection with; mail client, telnet,
> > WinsockTool?
> >
> >  Jim Harrison
> >  MCP(NT4, W2K), A+, Network+, PCG
> >  http://isaserver.org/Jim_Harrison/
> >  http://isatools.org
> >  Read the help / books / articles!
> >
> > -----Original Message-----
> > From: Marvin Cummings [mailto:MarvinC@xxxxxxxxx]
> > Sent: Friday, October 29, 2004 4:43 PM
> > To: [ISAserver.org Discussion List]
> > Subject: [isalist] Problem publishing port
> >
> > http://www.ISAserver.org
> >
> > I'm having trouble configuring ISA to map port 26 to my Exchange
> > server. What I've done is added port 26 to the exchange default SMTP
> > virtual server protocol and now want to configure the ISA server to
> > open port 26 and map it to this exchange server. This I'm oping will
> > allow inbound email.
> > What I've done is
> > navigate to the properties of my published exchange smtp rule
> > clicked the traffic tab where SMTP server is selected
> > clicked ports and selected the Send requests to this port on the
> > published server: 26.
> >
> > I've tried to send messages in externally and waited but nothing is
> > coming thru. Could I be doing this wrong?
> >
> > Port routing 101...SOS and I'm not seeing strait right now so any
> > responses are appreciated.
> >
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No.1 Exchange Server Resource Site: http://www.msexchange.org
Windows Security Resource Site: http://www.windowsecurity.com/
Network Security Library: http://www.secinf.net/
Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com
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