Sender Policy Framework, or SPF, is a verification system, that is used to stop the so-called email spoofing where an e-mail message is sent from one email address, but to seem as being sent from another one, generally with the objective to fraud the recipient in some way. When SPF protection is activated for a domain, a unique record is made for it in the Domain Name System and all of the DNS servers worldwide get it. The record includes all the e-mail servers that are allowed to send legitimate messages from an email address part of the domain. When an e-mail is sent, the first DNS server it goes to checks the SPF record and when its sending server is authorized, the message is forwarded to the target receiver. When, however, the sending server is not included in the SPF record for the given domain, the email message won't be submitted and it will be removed. In case you use this service, it'll prevent third parties from sending spam emails which appear to have been sent by you.
SPF Protection in Shared Hosting
SPF protection can be enabled for any domain hosted in a shared hosting account on our cloud platform with no more than a few mouse-clicks. The function can be found in the Emails section of our amazing Hepsia Control Panel and all you need to use it is to select one of your domains from the drop-down menu and type in the hostnames and the IPv4 or IPv6 addresses of the mail servers which will be authorized to send emails from your emails. As an added option you may also restrict the email messages to be sent from your domain name only if it has our MX records, in other words if our servers manage the e-mail addresses for it, not some third-party provider. This feature will provide you with the highest degree of safety, but it's not applicable when only your site is on our servers while the email addresses for the domain name are handled in a different place. Either way, the SPF protection service will keep your emails secure from being used for spam and scam purposes.