An SPF (Sender Policy Framework) record is a DNS TXT record that lists all the IP addresses and mail servers authorized to send email on behalf of your domain. It helps prevent spammers from forging your domain in their "From" address.
ℹ️ The SPF button is a wizard to insert a SPF record in the DNS Zone. The record is created as TXT type record.
The wizard form contains the following fields:
• SPF-Record: This read-only field contains the SPF record build on the information of the fields below.
• SPF Mechanism: The SPF mechanism tells mail servers how violations of the SPF policy shall be treated.
• Allow servers listed as MX to send email for this domain: Enable this option to allow email sending from all MX servers of the domain. MX refers to the DNS MX record here.
• Allow current IP address of the domain to send email for this domain: Enable this option to allow email sending from the IP address that is defined in the DNS A-Record of the domain.
• Additional IP addresses in CIDR format that deliver or relay mail for this domain: Here you can add additional IP addresses that are allowed to send email, separated by whitespace.
• Any other server hostname that may deliver or relay mail for this domain: Here you can add additional hostnames that are allowed to send email, separated by whitespace.
• Any domains that may deliver or relay mail for this domain: Here you can add additional domains that are allowed to send email, separated by whitespace.
• TTL: The time interval (in seconds) that this record may be cached before the source of the information should again be consulted. Zero values are interpreted to mean that the record can only be used for the transaction in progress, and should not be cached.
• Active: This defines whether this SPF record is active or not.
