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Therefore, it is a method that allows you to detect which server or servers are allowed to send emails on your behalf . For this reason, when you understand what SPF is, you will see that it locates the sender of an email and thus prevents others from sending it on their behalf. Which, as you can imagine, is very beneficial for well-crafted email marketing campaigns. Its function is to prevent an email from being sent from servers that have nothing to do with your domain. Especially because if this were to happen, it could lead to phishing or other types of spam. And, as a consequence, the recipients of the messages could mark your content as spam . This would greatly affect your domain. Where is the Sender Policy Framework defined? Now that you understand what an SPF is, you should know that it is defined in a .


txt type record. That is, text. And this is hosted gambling email list in the DNS or Domain Name Server of your own domain. In this case, DNS is a kind of " guide ". When you search for a name (a domain), it will be accompanied by an identification number, which refers to an IP. But in addition, DNS also have different blocks of records. And each of them carries with it a type of information: DNA type A. It is the IP identification for a domain. The CNAME type refers to the domain alias. MX . And finally, .txt records . These carry text information regarding each domain. Continuing with the topic of what the SPF is, it is this last record in .txt format that you should pay attention to, since it is the one that will support the information necessary to designate the Sender Policy Framework.