Mail delivery failed: returning message to sender - linux-pcmcia at lists.infradead.org

[Mail Delivery Subsystem]

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  support at inet.ua
    SMTP error from remote mail server after RCPT TO:<support at inet.ua>: 
    host mxs.inet.ua [195.214.192.100]: 550 <support at inet.ua> unknown

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