-- Gateway is receiving a file, sometimes fails with the following massage :
transfer in server mode refused: reason="82, A transfer has already started" - No error
20070704 102957 021 FPSIT E ABORT_REQ XFBCFT(1685) [0] ABORT sent : 2 204
20070704 102957 035 FPSIT E XERR_IND  XFBCFT(1685) [0] error receiving, TYPE:FFFF, ID:8510102, N:COMPLETE
20070704 102957 034 FPSIT E XERR_IND  XFBCFT(1685) [0] error receiving to GATEWAY, file:  
20070704 103010 011 SUP   W ABORT_ID  XFBCFT(1685) connection abort indication: reason="204, MSG 00002/00204" /prot.diag="204, File already exists" / error=0

* In general this problem occurs because of the transfer ident is repeated.

To avoid this problem, you have to maintain the mailbox in a efficient way.
1. purge the mailbox periodically and at the same time you have to
2. delete the files which will be created in runtime\tmp folder.