Hi Ramiz
The filename field in the SFTP sender adapter requires a regular expression. The behavior is different from the normal File/FTP adapter.
To use the character * in regular expressions, it needs a preceding element.
Try using the following to see if it works:-
I061.*
The above regular expression will search for any names that starts with I061 followed by any single character (.) that occurs zero or more times (*)
Rgds
Eng Swee