data hygiene

Address verification doesn’t fix any real problem

address-verification-doesn’t-fix-any-real-problem

Would you trust an address verification company that used twitter spam to advertise their product? Would you trust an address verification company that sent email spam to advertise their product? Would you trust an address verification company that sent email advertising their product to made up addresses? Would you trust an address verification company that sent email advertising their product to spamtraps? Would you trust…

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Identifying domains that don’t accept or send email

identifying-domains-that-don’t-accept-or-send-email

A couple folks have asked me recently about MX records that they don’t understand. These records consist of a single . or they contain localhost or they are 127.0.0.1. In all cases, the domain owners use these records to signal that the domains don’t accept email. What do these records look like? Why do domains do this? In all cases it’s because the domain owners…

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