Which email validation services are best for ZoomInfo email lists and are ZoomInfo validated emails trustworthy for cold outreach?

Summary

Using ZoomInfo email lists for cold outreach necessitates thorough validation due to data decay and accuracy concerns. While ZoomInfo provides validation, it's recommended to use third-party email verification services like NeverBounce, ZeroBounce, Hunter.io, Snov.io, Clearout, Mailfloss and Bouncer for more accurate and up-to-date results. These services offer features like email scoring, abuse detection, and real-time validation. Experts also advise against blindly trusting ZoomInfo data, emphasizing the importance of permission, personalization, and data enrichment to improve deliverability and protect sender reputation.

Key findings

  • Third-party Validation: Relying solely on ZoomInfo's validation is insufficient; third-party email validation is necessary.
  • Data Decay: Email data from ZoomInfo decays quickly, requiring frequent and real-time validation.
  • Service Variety: Several email validation services are available, each with unique features such as email scoring and abuse detection.
  • Deliverability Impact: Validating email lists improves deliverability and protects sender reputation.
  • Permission Matters: Ethical concerns exist around using purchased lists; opt-in strategies are preferred.

Key considerations

  • List Hygiene: Implement regular email list cleaning practices to remove invalid and risky emails.
  • Real-time Validation: Consider using real-time validation services to capture changes in email validity.
  • Cost-Benefit Analysis: Evaluate the cost of email validation services against the potential benefits in deliverability and sender reputation.
  • Data Enrichment: Use data enrichment tools to gather additional information about prospects and personalize email messages.
  • Legal Compliance: Comply with email marketing regulations and prioritize permission-based marketing strategies.
  • Toxic Emails: Removal of toxic email addresses from lead generation lists will improve deliverability.

What email marketers say
11Marketer opinions

Validating ZoomInfo email lists for cold outreach requires caution and third-party validation. While ZoomInfo validates emails, its data accuracy is questionable and decays quickly. Experts recommend using email validation services like NeverBounce, ZeroBounce, Hunter.io, Snov.io, Clearout, and Bouncer to remove invalid and risky emails. Personalization and data enrichment enhance deliverability, but even with validation, purchased lists are risky and double opt-in processes are highly advisable for quality data.

Key opinions

  • Validation Needed: ZoomInfo validated emails aren't always trustworthy for cold outreach and should be validated again using a 3rd party email verification tool.
  • Popular Services: NeverBounce, ZeroBounce, and Hunter.io are popular choices for validating ZoomInfo email lists.
  • Data Decay: Data from ZoomInfo can decay quickly, so real-time validation is recommended.
  • Personalization: Personalizing cold emails based on data from ZoomInfo and enriching the data is crucial for engagement.

Key considerations

  • Data Accuracy: Be aware that ZoomInfo's data may not be 100% accurate, requiring secondary validation.
  • Deliverability: Focus on email deliverability by implementing email validation and list cleaning processes.
  • Sender Reputation: Protect your sender reputation by removing invalid and risky emails before launching a campaign.
  • Testing Approach: Segmentation and small batch testing of ZoomInfo emails are recommended before large-scale cold outreach.
  • Legal: Always consider legal ramifications of sending email to non opted-in people.
Marketer view

Email marketer from Email Marketing Forum shares their experience that while ZoomInfo claims to validate emails, their data isn't always 100% accurate. They advise using a third-party validation tool like Hunter.io or Snov.io to double-check the emails before using them for cold outreach.

January 2025 - Email Marketing Forum
Marketer view

Email marketer from LinkedIn explains that when sending cold emails based on data from sources like ZoomInfo, it's crucial to personalize the message and provide value to the recipient. They suggest using data enrichment tools to gather additional information about prospects and tailor the email accordingly.

January 2022 - LinkedIn
Marketer view

Marketer from Email Geeks advises that looking for advice on how to spam (sending to Zoom-acquired email addresses) in a place focused on opted-in email addresses is not advisable.

May 2024 - Email Geeks
Marketer view

Marketer from Email Geeks explains ZoomInfo validates emails every 90 days, but doesn't advise trusting ZoomInfo's emails as recently validated for cold outreach. There is no mechanism between ZoomInfo and sending applications that would alleviate extra work for sales people.

June 2024 - Email Geeks
Marketer view

Marketer from Email Geeks shares that Neverbounce validates emails from ZoomInfo since they are owned by them.

February 2024 - Email Geeks
Marketer view

Email marketer from Medium explains that cleaning up the email list using third-party services like Mailfloss is important to enhance deliverability. The tool automatically cleans your lists daily so you don't have to.

October 2022 - Medium
Marketer view

Email marketer from Quora says that ZoomInfo's data can be a good starting point, but relying solely on their validation for cold outreach is risky. They recommends segmenting the validated list and testing deliverability with a small batch of emails before sending to the entire list.

September 2024 - Quora
Marketer view

Email marketer from G2 explains that there are a variety of email verification tools available, but recommends tools such as ZeroBounce, NeverBounce, and Hunter.io for cleaning lists to enhance deliverability.

May 2024 - G2
Marketer view

Email marketer from Reddit explains that NeverBounce and ZeroBounce are popular choices for validating ZoomInfo lists. They suggest running a thorough validation process to remove invalid and risky emails before launching a campaign.

August 2021 - Reddit
Marketer view

Email marketer from Reddit advises caution when using ZoomInfo emails for cold outreach, highlighting that data decays quickly. They recommend validating emails in real-time using a service like Clearout or Bouncer to ensure deliverability and avoid harming sender reputation.

October 2022 - Reddit
Marketer view

Email marketer from Email Marketing Blog explains that email validation is a critical aspect of email marketing success. They advise implementing a double opt-in process whenever possible and regularly cleaning your email list to remove inactive or invalid subscribers.

May 2023 - Email Marketing Blog

What the experts say
2Expert opinions

Experts caution against relying solely on ZoomInfo's data for cold outreach. Kickbox disallows purchased lists due to permission concerns, while Word to the Wise highlights the rapid data decay in such lists, potentially harming sender reputation despite ZoomInfo's validation efforts.

Key opinions

  • Permission Focus: Reputable email validation services like Kickbox avoid purchased lists to maintain high permission standards.
  • Data Decay: Email data from purchased lists decays rapidly, invalidating ZoomInfo's initial validation.
  • Reputation Risk: Using outdated or unverified data from ZoomInfo can negatively impact sender reputation.

Key considerations

  • Source Ethics: Evaluate the ethics of using purchased lists versus permission-based email marketing.
  • Validation Frequency: Validate email lists frequently due to data decay, even if initially validated by ZoomInfo.
  • Reputation Monitoring: Monitor sender reputation closely when using ZoomInfo data for cold outreach.
Expert view

Expert from Word to the Wise explains that purchased lists, like those from ZoomInfo, suffer from data decay very quickly. Even if ZoomInfo validates emails, a significant percentage may become invalid soon after. Using such lists without thorough and recent validation can harm your sender reputation.

October 2022 - Word to the Wise
Expert view

Expert from Email Geeks shares that Kickbox disallows the use of purchased list data, because they want to remain on the brighter side of permission.

April 2021 - Email Geeks

What the documentation says
5Technical articles

Email verification services such as NeverBounce, ZeroBounce, Kickbox, Hunter.io and Bouncer offer advanced capabilities to validate lead generation lists from sources like ZoomInfo. These platforms emphasize removing invalid, risky, and toxic emails to protect sender reputation, improve deliverability, and enhance campaign performance through features like email scoring, abuse email detection, catch-all verification, and various email verification methods. Removal of toxic emails will improve deliverability.

Key findings

  • Verification Needed: Even lists from lead generation platforms need verification.
  • Multiple Features: Advanced platforms provide scoring, abuse detection, and catch-all verification.
  • API Integration: Platforms integrate with marketing automation for seamless validation.
  • Advanced Methods: Advanced methods include syntax, domain, and MX record checks for accurate validation.

Key considerations

  • ZoomInfo Trust: Don't blindly trust data from lead gen, always verify.
  • Risk Assessment: Understand which types of emails are risky and how to identify them.
  • Platform Cost: Evaluate platform costs vs gains in deliverability.
  • Automation: Look for integrations that allow automated validation.
  • Toxic Emails: Toxic email addresses can harm your deliverability if not removed
Technical article

Documentation from Hunter.io provides information about different email verification methods, including syntax check, domain check, and MX record verification. They state that their platform combines these methods to provide accurate email verification results for lead generation efforts.

October 2024 - Hunter.io
Technical article

Documentation from ZeroBounce highlights its email validation capabilities specifically for B2B email lists. They emphasize features like email scoring, abuse email detection, and catch-all verification to ensure high deliverability and accuracy when using data from platforms like ZoomInfo.

January 2024 - ZeroBounce
Technical article

Documentation from Bouncer explains their platform's ability to detect toxic emails. By removing them your deliverability will improve significantly.

March 2023 - Bouncer
Technical article

Documentation from NeverBounce explains that their platform offers advanced email verification and cleaning services that can be used to validate lead generation lists from sources like ZoomInfo. They emphasize the importance of removing invalid, risky, and toxic emails to protect sender reputation and improve campaign performance.

May 2024 - NeverBounce
Technical article

Documentation from Kickbox emphasizes the importance of email verification in cold outreach and explains that their platform can detect various types of invalid and risky emails, including those sourced from data providers. They highlight their integrations with marketing automation platforms for seamless validation.

November 2021 - Kickbox