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Exchange Server 2003

Dear Expert,

We have a scenerio of network in which our front-end exch server is connected with our ISA firewall for e-mail forwarding.

but since yesterday we are getting an issue in sending mails to external domains. the problem is that while sending the user gets different undelivery message eg. " There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.

Please provide your kind support on this ASAP.

Many Thanks,
Aryan khan

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  • Jimmy McCorkle
    Jimmy McCorkle May 11, 2010

    Are you running on a T1 or DSL? Also who is the provider?

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1 Answer

We have 256 kbps premier connection.. and our current bandwidth is enough as it was working fine before.

Posted on Jun 09, 2008

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