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oKay

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Hey there!

I've encountered more than just a little trouble trying to get the KMS 5.7.5 installed on our i-net box to accept mails from the Exchange2k-server in our office without making it an open relay.

As we are connected via ISDN the i.p. of our office is variable, so allowing relay for a certain i.p address or address-space is no solution (entering an address-space would allow other people using the same provider to relay via our server, right?). On the other hand making our Exchange capable of authing and collecting all mail from KMS using an smtp-connector is not wanted. As some of us are working at home office frequently, they have to be able fetch their mail from there (which obviously is no problem, as they can simply tell their Outlook to auth with KMS).

At the time being, others using the same provider in fact might use our KMS as a relay, but this is at best a makeshift solution. Any ideas on how to solve this... um... more tightly?
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waltspar

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you may wan to look into Dynamic DNS - I know others have used it, and I plan on using it for my cable setup at home.

http://www.dyndns.org/

It is a third party (free) solution to handle users with changing IPs.

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jimf

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I'll vouch for dyndns.org - we use it at the office and at home. Works great.

Just remember, if you're using the free version you will have to re-register your ip at least once a month to keep your account active. This can easily be done using a scheduled event and should be done often if your isp changes your ip frequently, so that dyndns will continue to forward to a correct address.

One last thing, it is possible that your isp is blocking your incoming standard smtp port 25. In this case dyndns offers a service to forward mail to a non-standard port, but this is a pay service. However, the cost for this service is minimal.

Jim
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oKay

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Hi!

Thank you two for sharing your ideas. I'll dig into dynDNS soon. So i might use this thread for questions coming up.

Kay
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