This is the DNS setup:

name class type data time to live IN TXT v=spf1 ~all 14400s (04:00:00) IN TXT v=spf1 mx -all 14400s (04:00:00) IN TXT v=spf1 ip4: mx ~all 14400s (04:00:00)

Refer to the guide provided by google, it is not setup correctly, it should be a single record instead of multiple.

Pls combine them into 1 like below 14400 IN TXT v=spf1 ip4: mx ip4: mx ~all