There is apparently some corruption in the list's request.pck file resulting in a held message with a non-numeric request ID.
Do the following:
cd /usr/local/cpanel/3rdparty/mailman bin/dumpdb lists/LIST_HOST/request.pck
And post the result.
There is apparently some corruption in the list's request.pck file resulting in a held message with a non-numeric request ID.
Do the following:
cd /usr/local/ cpanel/ 3rdparty/ mailman HOST/request. pck
bin/dumpdb lists/LIST_
And post the result.