If Microsoft Office 365 is your email provider, here’s how to set up your SPF record for the relevant server. We’ll start with a simple process you can follow for any domain provider, then add more specific details for popular domain providers like Namecheap, Cloudflare, and Bluehost. H...
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An SPF record is a DNS TXT record containing a list of all the authorized mail servers for your website. Learn how to use SPF records here.
For your domains that do not send email (inactive or parked domains), it is recommended to publish an SPF policy that doesn’t include any IP addresses to prevent it from being abused. Here’s an example record for a non-sending domain: v=spf1 -all Note: SPF records cannot be over ...
Once the SPF record has been set up, anybody who receives an email can check that it came from a server that has been authorized. If an email originates from a non-authorized domain, the server can treat the mail as spam and exclude it by either bouncing or rejecting it. ...
v=spf1 ip4:192.0.2.0 ip4:192.0.2.1 include:examplesender.email -all This example lets the server know what type of record this is, states the approved IP addresses and a third-party for this domain, and tells the server what to do with non-compliant emails. Let’s break down how the...
the SPF record exceeds the 10-DNS-lookup limit; new 3rd-party email delivery services are added; SPF updates in the DNS, including those from 3rd-party services; DKIM updates in the DNS. Unauthenticated, a legitimate email is probably treated as spam or rejected outright, which means...
Lets see how to setup SPF record for an on-premise setup : First choose any one of the below mechanisms to create the SPF all,ip4,ip6,a,mx,ptr,exists,include Below is an mechanism with soft-fail v=spf1 ip4:10.10.10.1/16 (CIDR) mx ptr:Sender1.domain.com in...
SPFis like a guest list for your email party. It’s a way to tell email servers who is allowed to send emails on behalf of your domain. When you set up an SPF record, you list the IP addresses and email servers authorized to send mail for your domain. ...
For more information about *.onmicrosoft.com domains, see Why do I have an "onmicrosoft.com" domain?. If you use one or more custom domains for email (for example, contoso.com): The Microsoft 365 enrollment process already required you to create or modify the SPF TXT r...