Returned mail: Data format error

Your message was not delivered due to the following reason(s):

Your message was not delivered because the destination computer was not reachable within the allowed queue period. The amount of time a message is queued before it is returned depends on local configuration  parameters.

Most likely there is a network problem that prevented delivery, but it is also possible that the computer is turned off, or does not have a mail system running right now.

Your message was not delivered within 6 days: Host 187.221.0.143 is not responding.

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