Your message was undeliverable due to the following reason: Your message was not delivered because the destination computer was unreachable within the allowed queue period. The amount of time a message is queued before it is returned depends on local configura- tion 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 could not be delivered within 3 days: Host 150.48.160.75 is not responding. The following recipients could not receive this message: <ietf-822@xxxxxxx> Please reply to postmaster@xxxxxxxxx if you feel this message to be in error.
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