mx1.caltech.iphmx.com IP addresses

A IPv4 address
1h
68.232.137.147
Cisco Systems Ironport Division
AS16417
United States of America
Los Angeles, California
68.232.147.192
Cisco Systems Ironport Division
AS16417
United States of America
San Jose, California
AAAA IPv6 address
1h
mx1.caltech.iphmx.com has no AAAA records.