Can I run 4-Sight Fax Server on OS X in classic mode?
No. The 4-Sight Fax Server version 5.0 software will only run on Macintosh computers that have OS 8.6 – OS 9.x installed (OS 9.x is highly recommended). This does NOT include OS X running in classic mode. OS X compatibility will not exist on the Fax Server until 4-Sight Fax version 5.1 is released.