Product
Docs
Resources
Log In

Error: SPF permanent error: too many dns lookups

What's Causing This Error

This error occurs when the SPF 10-DNS-lookup limit is exceeded. The framework RFC7208 defines the maximum number of mechanisms and modifiers that do DNS lookups must not exceed "10" for every SFP check. The general cause for this is the reckless use of the "include" or the "redirect" modifier in an SPF record.

Solution - Here's How To Resolve It

To resolve this issue, follow these steps:

  1. Remove all mechanisms that resolve to the same domain.
  2. Avoid using PTR mechanisms.
  3. Remove legacy patterns and vendor domains.

Other Common SPF Errors (and Solutions)

View all errors

Build your first notification in minutes

Send up to 10,000 notifications every month, for free.

Email & push notification

Build your first notification in minutes

Send up to 10,000 notifications every month, for free.

Email & push notification

Product

Pricing

Providers

Developers

Documentation

API

Libraries

Status

© 2022 Courier. All rights reserved.