Over 347 billion emails are sent every day as of 2025, but a large chunk of these never make it past spam filters, especially for businesses lacking a proper Sender Policy Framework (SPF) record. Whether you’re a startup founder, IT manager, or digital marketer, improper email authentication could mean missed clients, lower engagement, or even brand damage due to spoofing attacks.
This is where SPF generator tools make it easier than ever to create, validate, and manage your SPF records without deep DNS knowledge.
In this blog, we’ll explore the top SPF generator tools that help you stay out of spam folders, protect your domain reputation, and streamline email authentication with ease.
What is an SPF Record?
SPF (Sender Policy Framework) is a DNS TXT record that specifies which mail servers are authorized to send email on behalf of your domain. Your emails may be rejected outright or marked as spam if you have an inaccurate or missing SPF record.
Benefits of using an SPF record:
- Reduces email spoofing
- Enhances email deliverability
- Builds domain trust with mail servers
- Ensures compliance with DMARC and DKIM policies
Top 10 SPF Generator Tools to Use in 2025
1. MXToolbox
Website: https://mxtoolbox.com
MXToolbox is a leading name in DNS diagnostics and email infrastructure tools, used by over 4 million IT professionals worldwide. Their SPF record generator is designed to streamline the creation and validation of SPF entries for improved email deliverability. Alongside traditional tools, MXToolbox also complements modern AI Email Assistants, enabling users to build and check SPF records using intuitive form fields while accessing detailed diagnostics.
MXToolbox is especially effective for identifying DNS-related email issues, ensuring your SPF records are compliant and efficient. As businesses face increasing email spoofing attempts, tools like this help protect domains from being exploited. The platform also checks if your SPF record exceeds the 10 DNS lookup limit, a common cause for failure.
Features:
- Simple interface for SPF creation and validation
- DNS lookup limit checks and syntax analysis
- Integrated email and DNS health monitoring
- Detailed troubleshooting reports
- Real-time blacklist checks
2. EasyDMARC
Website: https://easydmarc.com
EasyDMARC simplifies SPF record creation with a beginner-friendly interface and automation. Trusted by over 25,000 domains globally, the tool allows users to generate SPF records just by selecting their email service providers. It also provides real-time suggestions and syntax validation to prevent errors.
EasyDMARC’s platform is especially beneficial for SMBs and marketers who need a secure and reliable email authentication framework without technical complexity. With phishing attacks rising by 61% in recent years, having an accurate SPF record is essential, and EasyDMARC makes it achievable with minimal technical skill.
Features:
- Drag-and-drop style provider selection
- Automatic inclusion of service IP ranges
- DNS query limit monitoring
- SPF syntax validator
- Integrated with DMARC reporting tools
3. DMARCLY
Website: https://dmarcly.com
DMARCLY offers a powerful SPF generator and email writer tools as part of its comprehensive email security suite, serving over 10,000 customers globally. These tools are specifically optimized for organizations using multiple third-party email services. The SPF generator features “SPF flattening” to ensure your record remains within the 10 DNS lookup limit, an issue that plagues 41% of businesses using cloud email services.
With real-time syntax checking and AI-powered suggestions, DMARCLY ensures that SPF records are both compliant and optimized. It’s ideal for businesses managing complex DNS records who want clarity and control over their authentication protocols.
Features:
- SPF record generation and flattening
- Lookup count monitoring
- Syntax validation and troubleshooting
- Visual flow of SPF evaluation
- Works with DKIM and DMARC configurations
4. Mailhardener
Website: https://www.mailhardener.com
Mailhardener focuses on simplifying complex email authentication issues with its intelligent SPF generator, providing robust DNS security solutions. It helps users create optimized SPF records through a real-time recommendation system. The tool automatically includes supported providers, flags deprecated mechanisms, and provides advanced DNS diagnostics.
According to a 2024 report, 92% of phishing emails are sent from domains with misconfigured SPF, something Mailhardener actively helps prevent. It’s designed for security-conscious users who want automation without sacrificing control. Mailhardener also integrates with DNS services to automate updates.
Features:
- Auto-detection of third-party email services
- Smart recommendations during setup
- Syntax warnings and record validator
- Flattened output to avoid lookup issues
- Real-time SPF health insights
5. PowerDMARC
Website: https://powerdmarc.com
PowerDMARC’s SPF generator is built for enterprise-scale usage and offers intuitive SPF record creation supported by powerful backend validation. With over 35,000 domains under management, PowerDMARC provides a seamless bridge between SPF, DKIM, and DMARC configurations.
It also comes with integrated monitoring to alert users of suspicious email activity. Their platform reports a 98% improvement in deliverability rates among clients who implement proper SPF and DMARC policies using its tools. The SPF generator is easy to use and educates users during each step.
Features:
- Step-by-step guided SPF record creation
- DMARC and DKIM integration
- SPF flattening and loop prevention
- Real-time DNS diagnostics
- Automated alerts and reports
6. SPF-Record.com
Website: https://spf-record.com
SPF-Record.com offers a minimalistic, mobile-friendly SPF generator tool. It’s ideal for freelancers, startups, or domain owners who want to quickly generate an SPF record without signing up or navigating dashboards. The tool has helped over 5 million users create accurate SPF records, with validation steps built into the process.
It checks DNS queries, highlights syntax issues, and ensures your record stays within technical limits. Despite its simplicity, it’s highly accurate and fast, perfect for small-scale users and web developers working on tight turnarounds.
Features:
- Mobile-optimized interface
- Instant SPF record preview
- Lookup count monitor
- No login required
- Simple validation steps
7. SocketLabs SPF Builder
Website: https://www.socketlabs.com
SocketLabs offers a developer-focused SPF generator designed to be part of a complete email infrastructure. It’s particularly effective for dev teams who want to ensure their transactional emails avoid spam filters. The tool lets users add custom IPs, domains, and services, then instantly generates a fully formatted SPF record.
In addition to this, SocketLabs provides email analytics and deliverability insights for enterprise clients. According to internal benchmarks, clients using their platform saw a 37% boost in inbox delivery after implementing correct SPF records.
Features:
- Developer-friendly SPF builder
- Works alongside DKIM and DMARC tools
- Integrated into the delivery optimization suite
- Syntax validation and lookup monitor
- Best used with SocketLabs email infrastructure
8. Postmark SPF Wizard
Website: https://postmarkapp.com
Postmark’s SPF Wizard is part of their broader mission to make email simple and predictable. Their tool is highly intuitive, guiding users through SPF creation with educational tips along the way. It’s especially suited for startups and developers using providers like SendGrid, Gmail, or Outlook.
Postmark boasts 100% uptime and ultra-fast message delivery, and their tools are built for reliability. The SPF wizard is perfect for ensuring that new domains are set up correctly from the start, helping avoid common configuration mistakes that lead to spam filtering.
Features:
- Wizard-style setup with guided tips
- Designed for popular ESPs
- Clean, user-friendly interface
- SPF syntax preview and testing
- Compatible with Postmark email delivery
9. Zerobounce SPF Generator
Website: https://www.zerobounce.net
Zerobounce, widely known for its email validation services, also offers a free SPF generator that focuses on speed, accuracy, and simplicity. Trusted by thousands of marketers and IT teams worldwide, this tool helps build a fully compliant SPF record using just a few clicks. With over 14 billion emails validated annually, Zerobounce’s infrastructure and insight into email security are robust and well-validated.
This SPF generator stands out due to its seamless integration with Zerobounce’s verification ecosystem, allowing users to check deliverability and domain health in one workflow. Its clean interface allows rapid generation of SPF entries, making it ideal for marketers, freelancers, and teams managing multiple domains.
Features:
- Straightforward SPF creation with no login required
- Error-free output with auto-syntax validation
- Real-time preview of SPF record
- Includes popular services like Gmail, Outlook, and Mailchimp
- Links directly to Zerobounce’s email health tools
10. Dmarcian SPF Surveyor
Website: https://dmarcian.com
Dmarcian’s SPF Surveyor provides an advanced visual breakdown of SPF records, ideal for IT teams managing multi-service environments. Its graphical interface shows how include statements expand, helping identify DNS issues and potential spoofing risks. Over 60,000 domains use Dmarcian for secure email authentication.
The tool supports flattening, record optimization, and policy enforcement. For enterprises managing many subdomains, Dmarcian gives unmatched clarity and actionable insights, helping users stay compliant with authentication protocols like DMARC and BIMI.
Features:
- Graphical SPF record visualization
- Flattening and optimization suggestions
- Includes history and source tracking
- Integrates with the full DMARC platform
- Alerts for record bloat and SPF failures
Why You Need an SPF Generator in 2025
Here’s what makes these tools indispensable:
- Avoid Manual Errors: One misplaced colon or unescaped space can break your SPF record.
- Handle Multiple Email Providers: Easily include Gmail, Outlook, Mailgun, and others in your SPF with correct syntax.
- Overcome Lookup Limits: Tools like DMARCLY and Mailhardener offer SPF flattening to help you stay within the 10 DNS lookup limit.
- Speed Up Email Authentication Setup: Create and test your SPF records in minutes, not hours.
Conclusion
SPF records play a critical role in protecting your domain from email spoofing and improving deliverability. As phishing threats continue to rise, configuring a proper SPF policy is no longer optional; it’s essential. Fortunately, SPF generator tools make the process straightforward, whether you’re managing a personal domain or handling multiple email services for a business.
From tools that offer deep customization to simple interfaces designed for beginners, each option in this list serves a specific need. Choosing the right one depends on your technical comfort level, the number of services you use, and how much ongoing monitoring you require. Setting it up once, correctly, can prevent major email security issues down the line and ensure your messages consistently reach the inbox.
FAQs
1. What is an SPF record?
It’s a DNS record that specifies which mail servers can send emails for your domain.
2. Do I need tech skills to use SPF tools?
No, many tools offer beginner-friendly interfaces.
3. Can I use multiple email services in one SPF?
Yes, using “include” statements, just stay within the 10 DNS lookup limit.
4. What if my SPF record exceeds the limit?
It may fail, causing emails to be blocked or marked as spam.
5. Are SPF generators free?
Most offer free versions; advanced features may cost extra.
