txt.att.net.		30 IN TXT "v=spf1 include:att-emg.spf.a.cloudfilter.net
ip4:166.216.149.0/24 ip4:166.216.152.0/24 -all"

Mail exchangers:
txt.att.net.		30 IN MX 10 att-e2xms-west.mx.a.cloudfilter.net.
txt.att.net.		30 IN MX 10 att-e2xms-east.mx.a.cloudfilter.net.