Correct Sender Policy Framework (SPF) records need to be configured in your DNS settings to ensure that Internet receivers will properly identify and receive your email. This article describes the DNS records you must add.

DNS Records

The following records are needed for SPF to work correctly. Replace example.com with your domain name:

example.com   14400   IN   TXT   "v=spf1 a mx ip4:your_server_ip include:spf.hostns.io -all"

If you already have an SPF record, add ip4:your_server_ip to this entry. Make sure to add it BEFORE the “all” mechanism as “all” always matches and typically goes at the end of the SPF record.

The IP address to be used here can be found within your welcome email, and will typically be set as the default for new domains.