The SPF record for mailhostingservice.com was updated to include the outbound.mailhop.org cluster. This is being done to facilitate a seamless migration to the new mail hosting platform.
mailhostingservice.com. 59 IN TXT "include:pmta1._spf.mailhop.org"
mailhostingservice.com. 59 IN TXT "include:pmta2._spf.mailhop.org"
mailhostingservice.com. 59 IN TXT "include:relay.mailchannels.net"
mailhostingservice.com. 59 IN TXT "include:smtp-eu._spf.mailhop.org ~all"
mailhostingservice.com. 59 IN TXT "include:smtp._spf.mailhop.org"
mailhostingservice.com. 59 IN TXT "v=spf1 a mx ptr ip4:216.154.198.165/28 ip4:64.57.243.64/26 ip4:54.191.214.3 ip4:54.191.214.36 include:outbound._spf.mailhop.org"