Sender Policy Framework, or SPF, is a verification system, that is intended to stop the so-called email spoofing where an email message is sent from one e-mail, but to appear as being sent from a different, usually with the purpose to fraud the recipient someway. If SPF protection is enabled for a domain name, an exclusive record is created for it in the Domain Name System and all DNS servers globally get it. The record contains all the email servers that are permitted to send legitimate messages from an e-mail address under the domain. When an e-mail is sent, the very first DNS server it encounters verifies the SPF record and if its sending server is permitted, the message is sent to the targeted destination. In case, however, the sending server is not contained in the SPF record for the specified domain, the email message won't be sent and it'll be discarded. When you use this solution, it'll prevent third parties from sending spam messages that seem to have been sent from you.

SPF Protection in Shared Hosting

When you host your domain names in a shared hosting account on our end and we handle the email addresses for them, you'll be able to enable SPF protection for them with a few clicks in your Hepsia Control Panel. This service is available in a section of its own where you can see which domains are currently secured. For those which aren't, you'll be able to enable the SPF protection solution and manage various things during this process - the hostnames of the mail servers that are allowed to send messages from your e-mail addresses, the IPv4 and IPv6 addresses of these servers, as well as to set a rule that email messages can be sent only when your domain names use our MX records. The last choice is the most secure one, but you can use it if we handle the e-mail addresses for your domain names and you are not using some other email service provider. The new records will propagate within 1 day and nobody will be able to forge the FROM field in a message by using your email addresses.