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Do not perform AAAA queries#34

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essays-on-esotericism wants to merge 1 commit intopoolpOrg:masterfrom
essays-on-esotericism:patch-1
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Do not perform AAAA queries#34
essays-on-esotericism wants to merge 1 commit intopoolpOrg:masterfrom
essays-on-esotericism:patch-1

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senderscore does not publish AAAA records. Validity last year changed the terms for their score.senderscore.com service to allow only 10,000 queries per 30 days for anonymous users - by searching for AAAA records first (that will inevitably be empty), we functionally cut that limit in half.

The "ip4" argument explicitly instructs net.LookupIP to retrieve only A records for the specified hostname.

senderscore does not publish AAAA records. Validity last year changed the terms for their score.senderscore.com service to allow only 10,000 queries per 30 days for anonymous users - by searching for AAAA records first (that will inevitably be empty), we functionally cut that limit in half. 

The "ip4" argument explicitly instructs net.LookupIP to retrieve only A records for the specified hostname.
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