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domainaware / checkdmarc

A parser for SPF and DMARC DNS records
https://domainaware.github.io/checkdmarc
Apache License 2.0
245 stars 76 forks source link

Add void lookup limit #85

Closed stcz closed 1 year ago

stcz commented 1 year ago

This MR will add a check for DNS Void lookups as mentioned in [RFC 7208](https://www.rfc-editor.org/rfc/rfc7208) 4.6.4.

An SPF Implementation should return an error if the Limit exceeds.

Please review if I added everything accordingly to the RFC.