Changes

   _spf.hostname    TXT    "v=spf1 ip4:IPv4_of_hostname/mask ip6:IPv6_of_hostname/mask a:hostname.sugarlabs.org mx:hostname.sugarlabs.org ~all"

   _spf.hostname    TXT    "v=spf1 ip4:IPv4_of_hostname/mask ip6:IPv6_of_hostname/mask a:hostname.sugarlabs.org mx:hostname.sugarlabs.org ~all"

The a and mx values are authorized mail server by domain name and authorized server by domain MX record, the MX record should also be defined

The '''a''' and '''mx''' values are authorized mail server by domain name and authorized server by domain MX record, the MX record should also be defined

for hostname.

for hostname.