Mail delivery failed: returning message to sender

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:

[e-mail]
Domain meandertravel.com has exceeded the max emails per hour (625/500 (125%)) allowed. Message discarded.
Reporting-MTA: dns; mea.meandertravel.biz

Action: failed
Final-Recipient: rfc822;[e-mail]
Status: 5.0.0