A sender policy framework (SPF) record is a type of DNS TXT record that lists all the servers authorized to send emails from a particular domain. A DNS TXT (“text”) record lets a domain administrator enter arbitrary text into the Domain Name System (DNS).

2024年4月24日 · Learn how to update a Domain Name Service (DNS) record to use Sender Policy Framework (SPF) with your custom domain in Office 365.

SPF allows the owner of an Internet domain to specify which computers are authorized to send mail with envelope-from addresses in that domain, using Domain Name System (DNS) records. Receivers verifying the SPF information in TXT records may reject messages from unauthorized sources before receiving the body of the message.

DMARC, DKIM, and SPF are three email authentication methods. Together, they help prevent spammers, phishers, and other unauthorized parties from sending emails on behalf of a domain * they do not own.

This tool can help you generate a SPF Record or modify your current SPF Record as well as to check the modified record has the correct syntax. If you want to modify an existing SPF Record from a domain, please look for the domain in question. Or create one from scratch. If you have questions, you can contact MxToolbox Support.

Creating an SPF record helps combat spammers trying to use your domain as a cover to send spam or other harmful email to unknowing recipients. The fraudsters pretend to be your company, allowing them to phish your clients for private account …

Mechanisms can be used to describe the set of hosts which are designated outbound mailers for the domain. Domains may also define modifiers. Each modifier can appear only once. "?" If a mechanism results in a hit, its qualifier value is used. The default qualifier is " + ", i.e. "Pass". For example: Mechanisms are evaluated in order.

By learning how to set up SPF (Sender Policy Framework) records, you can defend your email's reputation and fight spam. This DNS record makes it harder for someone to spoof your email address while attempting to impersonate you by informing the recipient's mail host which mail servers are permitted to deliver email from your domain name.

SPF Setup. Essentially, you set up an SPF record to reflect any IP addresses that will be sending email on your domain’s behalf. If your business has an SPF DNS record, it is publicly accessible.

4 天之前 · Step 1: Set Up SPF Record. SPF allows domain owners to define which IP addresses or servers are permitted to send emails on their behalf. Go to your domain’s DNS manager. Add a new TXT record with the following values: Name/Host: @ or your domain name. Type: TXT. Value (example): v=spf1 a mx ip4:192.0.2.10 include:mail.example.com ~all