SPF, which stands for Sender Policy Framework, is an email security system, which is employed to verify whether an e-mail message is sent by an authorized server. Employing SPF protection for a domain name will prevent the counterfeiting of email addresses created with the domain. In simple words: activating this function for a domain name creates a special record in the Domain Name System (DNS) which contains the IP of the servers that are allowed to send email messages from mailboxes under the domain. The moment this record propagates globally, it exists on all the DNS servers that route the Internet traffic. Every time an email message is sent, the initial DNS server it goes through tests if it comes from an approved server. When it does, it's sent to the destination address, but when it doesn't come from a server listed in the SPF record for the particular domain, it is rejected. In this way nobody will mask an e-mail address to make it look as if you are e-mailing spam messages. This technique is also called email spoofing.
SPF Protection in Hosting
If you host your domains in a hosting account on our end and we manage the e-mail addresses for them, you are able to enable SPF protection for all of them with a couple of clicks inside your Hepsia Control Panel. The service is accessible in a separate section where you can view which domain names are already secured. For those which aren't, you can enable the SPF protection option and manage various things in the process - the hostnames of the mail servers that are allowed to send messages from your mailboxes, the IPv4 and IPv6 addresses of the servers, and to set a rule that messages can be sent only when your domains include our MX records. The aforementioned option is the most secure one, but it can be used in the event that we manage the emails for your domain names and do not use another email provider. The newly created records will be activated within 1 day and nobody will be able to fake the FROM field in a message by using your e-mail addresses.
SPF Protection in Semi-dedicated Servers
The SPF protection attribute comes with all Linux semi-dedicated hosting plans, so if you host your domains in an account on our cloud hosting platform, you'll be able to activate the service without difficulty for any of your domain names. The Hepsia Control Panel, which comes with the semi-dedicated accounts, offers a very easy to work with interface, so you won't need to be proficient in the use of computers in order to secure your e-mails. You will only need to type the hostname and the IP address of each mail server that you'd like to be allowed to send out e-mails from your addresses and shortly after that the new record will be active for the domain that you've picked. As a further option, we will also give you the ability to limit the outgoing emails and secure your mailboxes even better by permitting messages to be sent only when the domain name involved has our MX records i.e. the e-mail messages for the domain should be managed by us and not by some other provider. Doing so you'll enjoy even better control and there won't be a chance for any person to forge your e-mails for malicious purposes.