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GMAIL- smtp;550-5.7.1 - Our system has detected an unusual amount of unsolicited

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  • GMAIL- smtp;550-5.7.1 - Our system has detected an unusual amount of unsolicited

    hi,
    when im trying to send mail to gmail from my domain (using exchange 2000 on sbs 2000), i get this message: (Only to gmail)

    There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
    <sbs.skif.local #5.5.0 smtp;550-5.7.1 Our system has detected an unusual amount of unsolicited>


    then after an hour or so, it just vanishes and everything is working propertly.

    then, it returns.
    but not in the same way,
    instead- my companies mails go to the recipient spam folder.

    i checked in dnsstuff.com if im blocked and everything is ok.

    does anyone have any ideas about this "abnormail" * * behavior?

    10x
    Or Czerninski.
    Best regards,
    Or.

  • #2
    Re: GMAIL- smtp;550-5.7.1 - Our system has detected an unusual amount of unsolicited

    Try to use realy via your ISP mail servers and Exchange connector. The gmail mail protection system change from time to time configuration etc. so the best way is
    to use relay via ISP.
    Best Regards,

    Yuval Sinay

    LinkedIn: https://www.linkedin.com/in/yuval14, Blog: http://blogs.microsoft.co.il/blogs/yuval14

    Comment


    • #3
      Re: GMAIL- smtp;550-5.7.1 - Our system has detected an unusual amount of unsolicited

      10x yuval.

      we tried to do 2 things.

      1. to add gmail's server to our host file (it worked for a day)
      2. we sent them letters -after 4 days they got us out from their black list.

      but 10x for the tip.

      yours,

      Or Czerninski.
      Best regards,
      Or.

      Comment

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