Problems using ports 25 and 110 with Windows XP

Hi

I have a network with a RedHat server running RedHat v9 with sendmail
v8.12 and POP3 v2001.78. When I telnet either port 25 or 110 using a
WindowsXP workstation it reports connection lost almost immediately.
However, nearly all the time it receives mail into Outlook but
occasionally and unrelated to message size, reports a lost connection.
This workstation cannot send mail at all to the linux server (I have to
send it straight out to the internet and wait for internal mail to be
sent back again!). I have the same problem with both Pegasus Mail and
Outlook.

There is also a workstation running Windows98, and it can reliably
telnet ports 25 and 110, and send or receive mail via the linux server
on these ports using Pegasus Mail.

Both workstation IPs are in /etc/hosts, the entire subnet is designated
as RELAY in /etc/mail/access and there is nothing in /etc/hosts.allow
or /etc/hosts.deny.

Is there something in Sendmail that has to be set up to work with XP
which is not required for Windows98? And how come port 110 loses
conection with telnet, but works nearly all the time with a mail client
on the same workstation?

Help would be greatly appreciated.

Peter Grossi

On 2005-02-04, (E-Mail Removed) <(E-Mail Removed)> wrote:
> v8.12 and POP3 v2001.78. When I telnet either port 25 or 110 using a
> WindowsXP workstation

And if you use something else than WinXP ?

> This workstation cannot send mail at all

And other workstation can? Then is not a problem in the server, maybe
is the NIC of the machine that is horky-dorky, maybe is a problem in
the cabling.

Davide

--
Fear leads to anger. Anger leads to hate. Hate leads to using Windows
for mission-critical applications.
-- What Yoda *meant* to say

(E-Mail Removed) wrote:
> I have a network with a RedHat server running RedHat v9 with sendmail
> v8.12 and POP3 v2001.78. When I telnet either port 25 or 110 using a
> WindowsXP workstation it reports connection lost almost immediately.

> There is also a workstation running Windows98, and it can reliably
> telnet ports 25 and 110, and send or receive mail via the linux server
> on these ports using Pegasus Mail.

Are you really contacting the correct machine? Try it with real IP
addresses rather than names, and then check the hosts file on each of
your clients and on the server. (Ideally they'll all be identical.)

> Both workstation IPs are in /etc/hosts, the entire subnet is designated
> as RELAY in /etc/mail/access and there is nothing in /etc/hosts.allow
> or /etc/hosts.deny.

Do both workstations really have the IP addresses you expect?

Switch off the XP workstation and then ping its address from the
server. If you get a response then you need to sort out your network IP
address allocation.

> Is there something in Sendmail that has to be set up to work with XP
> which is not required for Windows98?

No.

> And how come port 110 loses
> conection with telnet, but works nearly all the time with a mail client
> on the same workstation?

Different hosts, or Outlook isn't using port 110 (because you told it
not to). Check your IP addresses, host names, and Outlook pop/smtp
configuration values.

Chris