[NTLUG:Discuss] ftp permissions issue

[fredjame]

 From one *nix box to another...
ftp connects, and login is accepted.
can navigate directory structure and view directory list
can "put" file to home directory
cannot "put" file to another user's directory even though we both belong 
to the same primary group.
permissions are drwxr-xrwx and the files belong to
  - owner: otheruser
  - group: commongroup
Any clues would be greatly appreciated.

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