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How does SPF prevent spoofing?
An SPF TXT record is a DNS record that helps prevent spoofing and phishing by verifying the domain name from which email messages are sent. SPF validates the origin of email messages by verifying the IP address of the sender against the alleged owner of the sending domain.
What does a SPF record do?
SPF records play a key role in email security because they ensure that your domain is only sending emails from a verified list of servers, which you specify. Combat email spoofing: An SPF record helps prevent spoofing and phishing by verifying the IP address of the sender compared to the domain owner.
How does an SPF record help prevent spam?
In addition, an SPF Record will reduce the number of legitimate e-mail messages that are flagged as spam or bounced back by your recipients’ mail servers. The SPF record is not 100% effective, unfortunately, because not all mail providers check for it.
How to set up SPF to help prevent spoofing?
In order to use a custom domain, Office 365 requires that you add a Sender Policy Framework (SPF) TXT record to your DNS record to help prevent spoofing. Ensure that you’re familiar with the SPF syntax in the following table.
Why do I need to use SPF in Office 365?
Using SPF helps to validate outbound email sent from your custom domain. In order to use a custom domain, Office 365 requires that you add a Sender Policy Framework (SPF) TXT record to your DNS record to help prevent spoofing. SPF identifies which mail servers are allowed to send mail on your behalf.
Where do you put a SPF record in DNS?
An SPF record is added to your domain’s DNS zone file as a TXT record and it identifies authorized SMTP servers for your domain. If you are utilizing the DigitalOcean DNS Manager, make sure to wrap the SPF record with quotes. The following table provides an explanation of the various components of the Example SPF Record: