This is a simple project built using the built-in net/http package in golang that can be widely used to deliver email security, prevent spam, authentical emails and prevent phishing attacks as well.
The project uses the built-in functions in the net/http package in golang that are described below with their corresponding use cases:
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net.LookupMX(): This looks up if the email has a MX (Mail Exchanger) record, which specifies the mail servers responsible for receiving emails for your domain. The absence of a MX record signifies an inauthentic domain.
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net.LookupTXT(): It helps look for email servers that are allowed to send emails on behalf of that given domain, if the lookup contains a prefix spf1. If the spf test fails, the server looks up the dmarc record to determine what to do with the server that failed the spf test.
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