This tool will help you to create an SPF record for your domain. Before starting you should identify all servers and applications that are allowed to send email From: your domain name. After answering the following questions you should copy the TXT record into your zone file.
Enter Domain Name
Trusted by over 300,000 businesses of all size.
4.4/5
4.2/5
More Free Tools
Here are more tools for you to use, all free! Verify email address, check DKIM records, perform a DNS lookup, convert CIDR to IP range, and a lot more!
How Mailbox Providers Evaluate Sender Reputation in 2026
Most senders still try to fix sender reputation by watching bounce rates. That’s no longer enough. Mailbox providers now look at behavior: how consistently you send, how people engage, how often bad addresses appear, and whether your list quality is under control. Bounce rate is only one visible symptom. The real issue is usually upstream:
How Bad Email Data Drains Revenue and How to Stop It
Fake and mistyped email addresses rarely trigger alarms. They enter CRMs quietly. They move through funnels unnoticed. Sadly, the damage appears later, when revenue numbers stop making sense. By then, you’ve already missed opportunities, wasted lots of resources, and lost serious business revenue. What looks like a small data issue often can grow into a
How to Build a Safe Email Acquisition Funnel: A Step-by-Step Guide
Email is still one of the strongest channels for marketing and business growth. The Wall Street Journal calls email “the only guaranteed-delivery option the internet has left.” Advertising is expensive. Social reach may change overnight. SEO results can rise or fall without warning. But an email list is something you own. It enables you to