How to Check SPF?

You can check your SPF record using a variety of online tools or by using a command line tool like nslookup.

Using Online SPF Checkers:

• Online SPF Checker Tools: Numerous websites offer free SPF record checking services. Popular options include:
  • MXToolbox SPF Checker
  • EasyDMARC SPF Lookup
  • Mimecast SPF Record Check
• How to use these tools:
  1. Enter your domain name into the tool's search bar.
  2. Click the "Check SPF" or "Lookup" button.
  3. The tool will display your SPF record and provide analysis of its validity and potential issues.

Using Command Line Tools:

• Using nslookup: You can check your SPF record using the nslookup command in a command prompt or terminal.
  • Windows:
    1. Open the Command Prompt.
    2. Type nslookup -type=txt [your domain name] and press Enter.
  • macOS/Linux:
    1. Open Terminal.
    2. Type nslookup -type=txt [your domain name] and press Enter.
• Output Interpretation: The nslookup command will display your SPF record in the txt data field.

Manually Checking SPF Records:

• DNS Lookup: You can check your SPF record by performing a DNS lookup for the TXT record of your domain. This can be done using a variety of online tools or by using a command line tool like dig.
• Record Interpretation: If you find an SPF record, it will be a string of text that specifies the allowed sending servers for your domain.