[C2hs] Returned mail: Data format error

Your message was not delivered due to the following reason(s): Your message could not be delivered because the destination server 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 5 days: Mail server 153.101.216.148 is not responding. The following recipients could not receive this message: Please reply to postmaster@haskell.org if you feel this message to be in error.