SPF 10 Lookup Limit: How to fix it? (2024)

If you’re wondering why sometimes even legitimate emails are getting blocked and failing SPF on your receiver’s server, you have come to the right place. SPF protocol has a limit of generating 10 DNS lookups, exceeding which breaks SPF. This can be a reason why emails sent from authorized sources are failing to get delivered.

If you have considered options like manual SPF flattening to mitigate the SPF hard limit, you have probably got it all wrong. What if today your email service providers decide to change or add to their IP addresses without notifying you? This would also invalidate your SPF, and you are back to square one all over again!

This is why: PowerSPF, your dynamic and automatic SPF flattening solution that mitigates permerror by keeping you under the 10 DNS lookup limit, auto-updates netblocks, and always keeps you updated on changed IP addresses.

Our one-click SPF flattener shortens your SPF record to have a single include statement and is the answer to all your SPF-related issues.