SPF, which is an acronym for Sender Policy Framework, is an email security system, that is designed to validate if an e-mail message is sent by a certified server. Using SPF protection for a particular domain will prevent the forging of email addresses made with the domain. In simple words: enabling this feature for a domain makes a particular record in the Domain Name System (DNS) which includes the IP of the servers which are permitted to send e-mail messages from mailboxes under the domain. As soon as this record propagates globally, it will exist on all DNS servers that route the Internet traffic. Every time a new email message is sent, the first DNS server it goes through verifies whether it comes from an approved server. If it does, it is forwarded to the destination address, however when it does not originate from a server indexed in the SPF record for the domain, it's discarded. In this way nobody can mask an e-mail address and make it appear as if you're distributing spam. This approach is also termed email spoofing.

SPF Protection in Shared Hosting

When you host your domain names in a shared hosting account on our end and we manage the e-mails for them, you are able to activate SPF protection for any of them with several clicks in your Hepsia Control Panel. This service can be found in a section of its own where you will be able to view which domain names are already secured. For those that aren't, you can activate the SPF protection solution and manage a number of things during this process - the hostnames of the mail servers that are permitted to send messages from your e-mail addresses, the IPv4 and IPv6 addresses of the servers, and to create a rule that emails can be sent only when your domain names include our MX records. The last solution is the most secure one, and it can be used if we manage the emails for your domain names and you're not using a different email provider. The newly generated records will propagate within 1 day and nobody will be able to forge the FROM field in a message using your addresses.