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  1. Validity Help Center
  2. 250ok
  3. Getting Started

Getting Started

  • 250ok new user guide

    We know that starting with a new tool can be intimidating, especially when it comes to the world ...

  • How do I implement an X-header or body tag to help identify my mail in 250ok's Inbox?

    X-250ok-CID header: By adding a header to your email campaign, you can assist Inbox in uniquely ...

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