For domain in Sentora I added:
MX
HOSTNAME: @
TARGET: zeus.domain.com
SPF
HOSTNAME: zeus
TARGER: v=spf1 a ~all
The error output is:
zone domain.com/IN: domain.com/MX 'zeus.domain.com' has no address records (A or AAAA) zone domain.com/IN: 'zeus.domain.com' found SPF/SPF record but no SPF/TXT record found, add matching type TXT record zone domain.com/IN: loaded serial 2015022528 OK
Then adding TXT:
HOSTNAME: zeus
TAGERT: IP_of_zeus
Im getting:
ERROR DNS NOT SAVED
Hostnames must be unique.
Same thing when adding A record for zeus
I had to bypass checking via adding those by hand to database, which make them work, but still this is a bug that will prevent people to do this the safe way (via gui that validate data)