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  • 4.8 / 5.0 (2249)
    Premium 76+ References
  • 4.8 / 5.0 (1632)
    42+ References
  • 4.8 / 5.0 (1519)
    14+ References

Validity Testimonials

  • “Email accounts for nearly 50 percent of online revenue amassed through small-amount donations, It is an incredibly important channel for Oceana and has the highest ROI across our digital strategy.”

  • “Deliverability is so key to the health of our organization and to the email program. It’s great to have 250ok’s email analytics and oversight beyond what is provided by our ESP, to increase our confidence level and give us the critical insights to drive more informed decisions with our program.”

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  • Constant Contact
    Reference Rating
    4.8 / 5.0
    Customer References 76 total
    About

    Constant Contact introduced the first email marketing tool for small businesses, nonprofits, and associations in 1998. Today, the company helps more than 650,000 customers worldwide find marketing success through the …

  • Kickbox
    Reference Rating
    4.8 / 5.0
    Customer References 42 total
    About

    Kickbox ensures you only send email to real users and helps you separate the low-quality addresses from high-value contacts. Quickly validate and verify your email lists. Just drop your contacts …

  • TowerData
    Reference Rating
    4.8 / 5.0
    Customer References 14 total
    About

    TowerData works with marketers, database analysts and IT professionals to improve their contact databases by validating email addresses for better deliverability, providing email intelligence to improve personalization, and adding email …

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