We have the following problem. When transferring files from XCOM for Windows server to the mainframe the following message is displayed:
XCOMM0257E ACCESS DENIED BY SECURITY INTERFACE
The credentials of the user are correct and the password being used has a mixed case.
Component : XCOM Data Transport for Windows
Mixed or lower case passwords were being used but parameters were not set correctly for that.
Change LOWERCASE_PSWD=NO to LOWERCASE_PSWD=YES in the XCOM for z/OS CONFIG member.
XCOM™ Data Transport® for z/OS 12.0 > Administrating > CONFIG Member Parameters > LOWERCASE_PSWD