Sender Policy Framework, or SPF, is a validation system, which is intended to prevent the so-called email spoofing where an e-mail message can be sent from one address, but to look as being sent from a different, ordinarily with the objective to fraud the recipient for some reason. If SPF protection is activated for a domain, an exclusive record is generated for it in the Domain Name System and all DNS servers worldwide receive it. The record contains all of the mail servers that are allowed to send authentic messages from an email address part of the domain. When a message is sent, the very first DNS server it goes to checks the SPF record and if the sending server is permitted, the message is sent to the target receiver. When, however, the sending server is not contained in the SPF record for the particular domain, the e-mail message won't be submitted and it will be discarded. If you use this solution, it will stop third parties from sending spam messages that appear to have been sent by you.
SPF Protection in Hosting
When you host your domain names in a hosting account on our end and we handle the emails for them, you will be able to activate SPF protection for any of them with a few clicks inside your Hepsia Control Panel. This service can be found in a section of its own where you will be able to see which domains are already protected. For the ones which aren't, you'll be able to enable the SPF protection solution and configure a variety of things during this process - the hostnames of the mail servers that are permitted to send messages from your e-mails, the IPv4 and IPv6 addresses of these servers, and even to create a rule that emails 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 another e-mail provider. The new records will propagate within 1 day and nobody will be able to forge the FROM field in an email with your email addresses.