Complex sentence: Mail.com went public in June, 1999 and by December, 2000 had 1,400 employees and a $1 billion market capitalization, and as later renamed Easylink Services in 2001 after it sold its consumer email business to Net2Phone.
Split into simpler sentences: Mail.com went public in June, 1999 and by December, 2000 had 1,400 employees and a $1 billion market capitalization. Mail.com was renamed Easylink Services in 2001 after it sold its consumer email business to Net2Phone.