Hi.

We're running listserv and LSMTP on Windows NT. List has been running for
about a year without any problems.

Recently started receiving the below message and consequently cannot send
commands or otherwise to the server.  Any help is appreciated.

Thanks,
Mike Clark
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<[log in to unmask]>: host mailhost.xohost.com said: 553
    <[log in to unmask]>... Not server for
    ourhost.ourdomain.org