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  1. eric95

    [Host Unreachable] Exchange 5.5 Internet mail service

    I had this Host Unreachable problem with an old Exchange 5.5 server a little while ago. If I tried to telnet a clients listed MX record, port 25, I connected no problem. Exchange ALWAYS gave me 'Host Unreachable'... No reason for it at all. This is what I did to fix the problem. Open...

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