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Article #179

Firewall blocks email - help!

#179
From: Miles Gaynor
Date: Fri, 15 Sep 2000 00:00
66 lines
2731 bytes
Hi John,

Yes, Exchange 5.5 but on the same machine as Proxy. (its Small business
Server) The IPs of the punt cluster do change, but not very often. The
weird thing is that if Demon send a mail kick, the mail comes through on
the same connection as was already present. If I had the IP of the
mailserver wrong and I would expect the mail to fail even after a mail
kick. I don't think it can be a problem with port 25 and SMTP, there
must be something else that Demon use to ID you apart from the
Username/password as you log on.

either that or i am totally wrong. (It has been known!)

Miles
>-----Original Message-----
>From: Jon Grieve [mailto:jgrieve@southdown.co.uk]
>Posted At: Thursday, September 14, 2000 4:30 PM
>Posted To: nt
>Conversation: Firewall blocks email - help!
>Subject: Re: Firewall blocks email - help!
>
>
>Miles,
>
>First, I don't think you can IP addresses for the punt 
>cluster, as they may
>change.  However, for testing, this should work for the interim.
>
>So, what mail server are you using?  Exchange?  Is it running 
>on another
>machine 'behind' Proxy?
>
>Jon
>
>
>
>
>"Miles Gaynor" <mg@castlehoward.co.uk> wrote in message
>news:E604B4DA88E0D311B6A2009027E0197E099060@SBSSERVER...
>> Hi Folks,
>>
>> I am trying to receive email through MS Proxy 2.0 from demon 
>but when I
>> enable IP filtering I don't receive any email. I have made several
>> filters with  port 25 as smtp and the remote host as one of 
>demons mail
>> servers (I think I have covered all of demons mail server IPs) but no
>> joy.
>>
>> Also, If I connect and ask Demon help to do a mail kick 
>while I am still
>> connected, the mail comes in fine so it seems that demon 
>don't recognise
>> me when I have dialed up. Does anyone know how this could be 
>solved so
>> that I can have my firewall active but receive mail from demon?
>>
>> I did try opening the Ident port, but with no joy (but I'm 
>not to clear
>> on how this one works)
>>
>> TIA
>> Miles
>>
>
>
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Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <E604B4DA88E0D311B6A2009027E0197E099060@SBSSERVER> <968945380.8150.0.nnrp-14.d4f0f5e4@news.demon.co.uk>

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From: Miles Gaynor <mg@castlehoward.co.uk>
Subject: Firewall blocks email - help!
Date: 2000/09/15
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