SPF
Sender Policy Framework
A TXT record that lists the IPs authorised to send mail "from" your domain. Receivers reject mail whose source IP is not in the list.
Example
acme.dev. IN TXT "v=spf1 include:_spf.voltmail.dev ~all"Sender Policy Framework
A TXT record that lists the IPs authorised to send mail "from" your domain. Receivers reject mail whose source IP is not in the list.
Example
acme.dev. IN TXT "v=spf1 include:_spf.voltmail.dev ~all"