SPF, which is an acronym for Sender Policy Framework, is an e-mail protection system, which is is intended to validate if an email message was sent by a licensed server. Using SPF protection for a domain name will prevent the forging of email addresses created with the domain. In layman's terms: activating this attribute for a domain name makes a special record in the Domain Name System (DNS) which contains the IP of the servers that are permitted to send emails from mail boxes under the domain. When this record propagates globally, it will exist on all the DNS servers that route the Internet traffic. Any time a new email message is sent, the first DNS server it goes through verifies if it comes from an official server. In the event it does, it is sent to the destination address, however when it doesn't come from a server listed in the SPF record for the domain, it's discarded. Thus nobody can mask an e-mail address then make it appear as if you're e-mailing spam. This approach is also known as email spoofing.
SPF Protection in Semi-dedicated Hosting
If you have a semi-dedicated server account from us, you'll be able to protect your emails by activating the SPF protection service for any domain hosted in the account with only a few mouse-clicks. This can be done through the Emails section of the Hepsia Control Panel that comes with the semi-dedicated accounts and even if you lack previous practical experience with such things, you won't have any trouble to activate the protection. Everything that you'll have to do will be to choose a domain name from a drop-down menu and then type the mail server hostname and IPv4 or IPv6 address. The moment the updated record propagates, messages from your e-mail addresses will be mailed globally only if they're sent from that server. When your emails are handled by us and not by some third-party supplier, you can also use an option for emails to be mailed only if the domain contains our MX records and this is the safest option. When you have any questions regarding thisfunction, you can contact our technical support crew 24/7.