SPF, which means Sender Policy Framework, is an e-mail security system, that is employed to validate whether an email message was sent by an authorized server. Employing SPF protection for a given domain will stop the faking of emails created with the domain. In layman's terms: enabling this attribute for a domain generates a special record in the Domain Name System (DNS) which contains the IP of the servers which are permitted to send emails from mailboxes using the domain. The moment this record propagates globally, it exists on all DNS servers that direct the Internet traffic. Every time an e-mail message is sent, the initial DNS server it uses verifies if it originates from an accredited server. When it does, it is forwarded to the destination address, but when it doesn't come from a server listed in the SPF record for the particular domain, it's rejected. In this way nobody will be able to mask an email address and make it look as if you are sending spam. This technique is also known as email spoofing.

SPF Protection in Hosting

When you host your domains in a hosting account on our end and we manage the e-mail addresses for them, you are able to enable SPF protection for all of them with a couple of clicks in your Hepsia Control Panel. The service is available in its own section where you're able to view which domains are currently secured. For the ones which aren't, you'll be able to enable the SPF protection option and configure a lot of things in the process - the hostnames of the mail servers that are allowed to send messages from your email addresses, the IPv4 and IPv6 addresses of the servers, as well as to create a rule that emails can be sent only if your domains use our MX records. The last mentioned solution is the most secure one, but you can use it when we manage the email addresses for your domains and you're not using another e-mail provider. The newly generated records will be activated within 1 day and nobody will be able to fake the FROM field in an e-mail with your email addresses.