A computer-implemented method for importing/attaching or exporting/detaching a file during a given e-mail operation. From a user's perspective, the method begins when the user elects to perform the import/attach or export/detach function with respect to a given file. If the file resides locally, the operation proceeds as usual by carrying out the function as if the file is on the local system and resides in a known place. If, however, the file does not reside locally, a panel or other user interface is displayed. Using this panel, the user may then attempt to log into a remote system on which the file is supported. Thus, for example, the user interface may require the user to enter a userid, password, hostname, or some combination thereof. If the user login is successful, the routine gets or puts the file (e.g., using an FTP operation) as required, preferably as a background process. Upon completion of the file transfer, the routine then automatically completes the import/attach or export/detach function as if the file is on the local system and resides in the known location.