What is SPF record

SPF is an acronym for Sender Policy Framework and is gradually becoming an anti-counterfeiting standard to prevent forgery of email addresses. Your domain administrator or hosting company only needs to publish SPF records in the Domain Name System (DNS). These simple text records identify authorized email sending servers (by listing the IP addresses of those servers). The email receiving system checks if the message comes from a properly authorized email delivery server.

The check procedure is as follows:

1. The sender sends an email to the recipient

2. The mail receiving server receives the email and performs the following operations:

• Check which domain claims to have sent the message and checked the DNS for the domain's SPF record. • Determines if the sending server's IP address matches a published IP address in the SPF record. • Score emails: If the IP addresses match, the message is authenticated and gets a positive score. If the IP addresses do not match, the message cannot be authenticated and gets a negative score. These results are then applied to existing anti-spam filtering policies and heuristic filtering.

Why add SPF records?

SPF is an acronym for Sender Policy Framework and is a very efficient spam solution. It is a DNS-related technology whose content is written in the txt type of DNS and is an IP-based email authentication technology. Designed to address a particular issue in spam —— sender fakes. After you have defined your domain name SPF record, the receiving email will determine whether the connected IP address is included in the SPF record based on your SPF record. If it is, it is considered to be a correct email, otherwise it is considered It is a fake email.