Hi there,
I've found these lines in my webserver log:
GET //roundcube/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //cube/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //round/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //webmail/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //mail/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //Mail/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //WebMail/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //RoundCube/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //Cube/bin/msgimport HTTP/1.1" 404 1218 "-"
GET //Round/bin/msgimport HTTP/1.1" 404 1218 "-"
Looks like that someone tested out, if the msgimport script is available.
I don't have RoundCube installed on my webserver (only on my local net).
Ciao Michael