SPF, which stands for Sender Policy Framework, is an e-mail safety system, that is designed to verify whether an e-mail message was sent by a licensed server. Using SPF protection for a given domain will prevent the counterfeiting of email addresses made with the domain. In layman's terms: enabling this function for a domain makes a particular record in the Domain Name System (DNS) that contains the IP of the servers that are permitted to send emails from mail boxes using the domain. Once this record propagates worldwide, it exists on all DNS servers that route the Internet traffic. Every time an email message is sent, the first DNS server it goes through tests if it comes from an official server. When it does, it's forwarded to the destination address, but if it doesn't originate from a server indexed in the SPF record for the domain, it is rejected. In this way nobody can mask an e-mail address and make it appear as if you are sending spam. This approach is also known as email spoofing.
SPF Protection in Shared Web Hosting
If you host your domains in a shared web hosting account with us and we handle the e-mails for them, you'll be able to activate SPF protection for them with a few clicks inside your Hepsia Control Panel. This service is available in its own section where you can view which domain names are already protected. For the ones that aren't, you can enable the SPF protection service and set up a number of things during the process - the hostnames of the mail servers that are permitted to send messages from your email addresses, the IPv4 and IPv6 addresses of the servers, and even to create a rule that email messages can be sent only if your domain names include our MX records. The last mentioned choice is the most secure one, but it can be used when we take care of the e-mail addresses for your domain names and you're not using another e-mail service provider. The newly generated records will be activated within 24 hours and nobody will be able to fake the FROM field in a message with your addresses.