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  1. Member
    Join Date
    Aug 2005
    Location
    Minneapolis, MN
    Posts
    45

    Certifications
    A+, N+, MCP (70-121, 70-282), MCSA, AOS Competency: SBS
    #1

    Default Question for the Exchange gurus out there

    This is the response I receive when attempting to validate our mail server:

    MX records
    Preference Exchange IP address (if included)
    10 mail.xxxxx.org [xx.xxx.62.125]


    SMTP session

    [Contacting mail.xxxxx.org [xx.xxx.62.125]...]
    [Connected]
    220 *******0*****************************0*2********** ***********200***0********0*00
    EHLO internetfrog.com
    500 5.3.3 Unrecognized command
    HELO internetfrog.com
    250 excsvr03.xxxxx.ORG Hello [xxx.xxx.128.134]
    NOOP ***
    250 2.0.0 OK
    NOOP *** <6856e4bab3dffae1b8d683262ed0f014a94acff5>
    250 2.0.0 OK
    RSET
    250 2.0.0 Resetting
    MAIL FROM:<ValidEmail@internetfrog.com>
    250 2.1.0 ValidEmail@internetfrog.com....Sender OK
    RCPT TO:<admin@xxxxx.org>
    250 2.1.5 admin@xxxxx.org
    RSET
    250 2.0.0 Resetting
    QUIT
    221 2.0.0 excsvr03.xxxxx.ORG Service closing transmission channel
    [Connection closed]
    ----------------------------------------------------------------------- -----------------------------------------------------------------------

    The invalid response is highlighted. We can send and receive mail fine however another ISP has complained that this invalid response is causing their particular mail server to reject us. We are not behind a firewall here.

    OS: Windows 2000 SP4
    Exchange Server Standard Ed. SP 4 (6.0.6487.1)

    Anyone have any ideas? Any help is GREATLY appreciated. Thanks in advance!
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  2. Senior Member
    Join Date
    May 2005
    Location
    PA
    Posts
    1,343

    Certifications
    A+ / Net+ / MCP (270 / 290) - up next 70-291 enroute to MCSA 2003
    #2
    is your DNS reverse lookup set-up and set-up correctly?
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