SELECT "Extranet" FROM table_60935 WHERE "Intranet" = 'yes' AND "Name" = 'microsoft exchange server'
If the intranet entry is Yes, what is the extranet entry for Microsoft Exchange server?
CREATE TABLE table_60935 (
    "Name" text,
    "Public" text,
    "Intranet" text,
    "Extranet" text,
    "Personal Sites" text,
    "Team Sites" text,
    "Developer" text
)