Re: issues with mail - dns

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From: Todd Hudson (tatung70nospam_at_hotmail.com)
Date: 10/23/04 

Date: Sat, 23 Oct 2004 12:05:50 -0500

I can not connect to my mail server on port 25 due to it being secure (that
is, Telnet is not running.). Do you have an IP address I can try to connect
to?

"Lanwench [MVP - Exchange]"
<lanwench@heybuddy.donotsendme.unsolicitedmail.atyahoo.com> wrote in message
news:unYTErPuEHA.2184@TK2MSFTNGP12.phx.gbl...
> Todd Hudson wrote:
>> While I was out of town (anotherwords, nothing changed) we can no
>> longer ping.
>>
>> Here is our configuration:
>>
>> Windows 2003 Native DC's
>> Windows 2003 Member Servers
>> Windows XP SP2 clients running Office 2003
>> Cisco Pix 501 firewall
>>
>> If you drop to a command line and try to tracert or ping any domain
>> or ip, it resolves (DNS is fine) but we can not ping anything off our
>> network. As a result, we can get to the internet sites, but mail
>> (sending mail out via POP3 to our ISP no longer works. We can get
>> mail, but not send mail.
>
> That doesn't relate to your inability to ping, specifically. You send mail
> via SMTP, which uses port 25....can you telnet to an external mail server
> on
> port 25? If not, it's your firewall, dollars to doughnuts.
>
>>
>> I have brought in a machine imaged from a different company than
>> ours, same thing, not able to ping. You can not ping from any dc,
>> member server or desktop. It I log in to the firewall, I can ping out.
>>
>> I know this sounds like a firewall issue, but nothing has changed in
>> the PIX config in over 6 months. Also, there is a rule allowing for
>> outbound icmp.
>
> Again, it ain't ICMP that's the issue - that sounds like just a symptom
> that
> other outbound traffic is being blocked somehow.
>>
>> I have attached the Pix config just for giggles. We have been without
>> mail now for 2 days (sending mail out that is.
>
>>
>> Help
>>
>> Todd
>
>

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