All Tools

SPF Flattener

SPF quietly starts failing once a domain needs more than 10 DNS lookups (RFC 7208), and every include:, a, mx, and redirect spends one. Records cross the line as you keep adding senders, until the day mail bounces. This tool walks the whole tree, counts your lookups, and hands back a flattened record that fits.

tool-details
FunctionSPF lookup analysis
MethodRecursive DNS expansion
DataPublic DNS records only
OutputFlattened record and diagnostics

Check an SPF record.

try:
Ready. No account needed.

SPF helps with spoofing. LiveIntel helps with the bigger phishing workflow: simulations, analytics, and reporting.

See PhishSim

When one-off checks are not enough.

LiveIntel helps teams move from individual tools to a repeatable phishing program with simulations, analytics, trends, and reports.

Explore LiveIntel Try Another Tool