SPF, which is an acronym for Sender Policy Framework, is an e-mail security system, which is employed to validate if an e-mail message is sent by a certified server. Employing SPF protection for a domain will stop the faking of email addresses made with the domain. In simple words: activating this feature for a domain creates a particular record in the Domain Name System (DNS) which contains the IP of the servers which are permitted to send emails from mailboxes under the domain. As soon as this record propagates worldwide, it exists on all DNS servers that route the Internet traffic. Every time a new email message is sent, the first DNS server it uses tests whether it comes from an authorized server. If it does, it is forwarded to the destination address, yet when it doesn't come from a server indexed in the SPF record for the domain, it is discarded. Thus nobody will be able to mask an e-mail address then make it appear as if you are distributing spam messages. This approach is also termed email spoofing.
SPF Protection in Cloud Web Hosting
When you host your domains in a cloud web hosting account on our end and we handle the e-mail addresses for them, you are able to enable SPF protection for all of them with a few clicks inside your Hepsia Control Panel. This service can be found in a separate section where you can see which domains are currently secured. For those which aren't, you can activate the SPF protection service and configure a variety of things at the same time - the hostnames of the mail servers that are permitted to send messages from your e-mail addresses, the IPv4 and IPv6 addresses of these servers, as well as to create a rule that messages can be sent only when your domains have our MX records. The last mentioned option is the most secure one, and you can use it when we manage the e-mails for your domains and do not use some other email supplier. The newly generated records will propagate within 1 day and nobody will be able to forge the FROM field in a message by using your email addresses.