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Trailing-Edge - PDP-10 Archives - SRI_NIC_PERM_SRC_3_19910112 - mm-dom/mmailbox.ctl
There are no other files named mmailbox.ctl in the archive.
enable
cd src:<mm-dom>
load %"noinitial" mmlbx
get mmlbx
deposit $gtmok -1
save mmailbox