Mailing List Message #96633
From: Urs Gruetzner <>
Subject: Re: CGP SMTP Server frequently not available
Date: Tue, 4 Nov 2008 17:50:08 +0100
To: CommuniGate Pro Discussions <>
X-Mailer: CTM PowerMail version 5.6.2 build 4501 German (PPC) <>
Thanks for continued help

Its my brother living in Thailand, he has no fixnet Tel Line in his
house. The only way connecting to the Internet is the radio modem. But I
have found also a page of a "Thai Guru" (a German living in Thailand)
which confirms that also Thai companies are blocking connections to IP
with port 25.

I let him make test with a Telnet application. The time when he was able
to send mails, the telnet test was also successful, i.e. he got the
greetings of our server on the screen.

Today again, he was unable to send. The Telnet on port 25 produced an
error: networkerror.connection timed out.
I let him make then a Telnet test on our FTP server, this one was
successful (all the time we have been chatting successfully with AIM)

So its quite sure, that connections to 25 are manipulated. Weird is only
that it is not always happening.

Is it possible to open a second port in CGP or to use  (for this user
only) a secure SMTP connection with another port?


From: Tom Rymes <trymes>
Subject: Re: CGP SMTP Server frequently not available
Date: Mon, 3 Nov 2008 08:21:05 -0500
To: "CommuniGate Pro Discussions" <CGatePro>
X-Mailer: Apple Mail (2.929.2)

On Nov 2, 2008, at 10:20 AM, Urs Gruetzner wrote:

>Thanks again for your kind help. I will tell him to do this telnet test

Sweet, let us know what the results are.

>Question: As the error is not happening 100% (There are times when he
CAN send the mails through our server) is it possible that the
redirecting by the ISP is also only random?

Possibly, but it could also be that the problem isn't that at all, this
will at least help us rule that out.

Are you certain that he is always using the same ISP? Could he be at
home when it is not working and in a small internet cafe when it is? Or
maybe it only fails over the Radio/cell link, but it works when he is
home and plugged into some other provider? I don't know how far into the
sticks this person is, but maybe he isn't always on the radio link, and
the times when it works properly are when he is using some other connection.



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