meadowsvarsity2000

    I run a small Boy Scout Troop communication list.  I send out weekly email to sms reminders about activities.  Tmobile has blocked the email address I use.  I just got the following from sixteen (16) of my Tmobile users:

     

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    The response from the remote server was:

    550 permanent failure for one or more recipients (x@tmomail.net:blocked)

     

    Final-Recipient: rfc822; x@tmomail.net

    Action: failed

    Status: 5.0.0

    Remote-MTA: dns; d79033a.ess.barracudanetworks.com. (64.235.153.10, the server
      for the domain tmomail.net.)
    Diagnostic-Code: smtp; 550 permanent failure for one or more recipients (x@tmomail.net:blocked)
    Last-Attempt-Date: Tue, 11 Apr 2017 16:18:25 -0700 (PDT)

     

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    I checked with barracuda and they said I wasn't on their list, it must be on Tmobile's end

    How do I get unblocked?

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