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  1. Validity Help Center
  2. Sender education
  3. Email Glossary

Email Glossary

  • What is unsolicited bulk email (UBE)?

    Unsolicited bulk email (UBE), also called unsolicited commercial email (UCE), is another term for...

  • What is unsolicited commercial email (UCE)?

    Unsolicited commercial email (UCE), also called unsolicited bulk email (UBE), is another term for...

  • What is Variable Envelope Return Path (VERP)?

    Variable Envelope Return Path (VERP) is a technique used to make the Return-Path email address un...

  • What is WHOIS?

    WHOIS is a protocol used for querying databases that store registered user information on resourc...

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