How can I get SenderScore using a DNS lookup?
Summary
What email marketers say4Marketer opinions
Email marketer from Reddit shares a tip, mentioning that you can reverse your IP and use it in a DNS lookup against `score.senderscore.com`. The final part of the returned IP address will give you your sender score. However, they caution to verify the result since it may not always be accurate.
Email marketer from StackExchange user suggests a method to programmatically get the SenderScore by reversing the octets of your IP address and then querying the DNS record for `<reversed-ip>.score.senderscore.com`. The last octet of the resolving IP address should be your SenderScore.
Email marketer from EmailDeliverabilityBlog.com shares that a trick to quickly obtain a Senderscore is to reverse the order of the octets in your IP address, and then query the `<reversed-ip>.score.senderscore.com` domain. The resulting IP address will contain the SenderScore in its final octet. They also advise caution, as this method is not officially documented and might be unreliable.
Email marketer from Email Marketing Forum mentions using the reverse IP DNS lookup as a quick, albeit potentially unreliable, method to get an approximate SenderScore. They advise cross-referencing with the official SenderScore website for accuracy.
What the experts say4Expert opinions
Expert from Word to the Wise shares that one approach to look up Senderscore is performing a DNS lookup. Reversing the IP address of the mail server and querying the domain `score.senderscore.com` will return an IP address where the last octet is the Senderscore. The method is not officially supported and may not always be accurate, it can serve as a quick check.
Expert from Word to the Wise explains that Senderscore is just one source and that other reputation systems, particularly those used by ISPs, are more important. The expert also mentions that the reverse DNS lookup can show your score.
Expert from Email Geeks responds to Jean-Michel's question about the other octets in the SenderScore reverse DNS lookup, clarifying that the part `127.0.4.XX` doesn't mean anything, and the final octet is the score.
Expert from Email Geeks shares a trick to get SenderScore by running a DNS lookup against your IPs. Reverse the IP, then use `host <http://15.59.32.72.score.senderscore.com|15.59.32.72.score.senderscore.com>`. The final IP octet is the score of the IP. For example, 72.32.59.15 has a 99 score.
What the documentation says3Technical articles
Documentation from MXToolbox outlines that SenderScore.org assigns a score between 0 and 100, indicating the quality of your sending IP address. While not explicitly detailing DNS lookup methods, they allude to the possibility of extracting some data programmatically, which would involve a DNS lookup.
Documentation from Talos Intelligence explains that while they don't offer a direct Senderscore equivalent, reputation can be checked by IP. While not specifically about DNS lookups for SenderScore, they do mention methods by which you can use a DNS lookup to check reputation status.
Documentation from Senderscore.org explains that while a traditional lookup involves visiting the SenderScore website, some users employ DNS lookups to query the score directly. This involves reversing the IP address and querying against a specific domain. The last octet of the response typically represents the SenderScore.