What tools and methods can I use to level up deliverability monitoring?

Summary

To effectively level up deliverability monitoring, a multifaceted approach is required. This includes leveraging your own reporting data (bounces, opens, clicks, opt-outs segmented by domain), using dedicated IPs to build a positive sender reputation, implementing sender authentication (SPF, DKIM, DMARC), maintaining a clean email list, gradually warming up new IPs, monitoring bounce rates, personalizing emails, performing seed list testing, and using blocklist monitoring tools. Utilizing tools like Validity's Everest and Google Postmaster Tools, as well as establishing feedback loops with ISPs, provides further insights. These combined strategies aim to enhance sender reputation, ensure inbox placement, and prevent spoofing.

Key findings

  • Internal Reporting: Tracking bounces, opens, clicks, and opt-outs (by domain) provides a performance baseline.
  • Dedicated IPs: Using dedicated IPs can improve sender reputation with ISPs.
  • Sender Authentication: SPF, DKIM, and DMARC are essential for verifying sender identity.
  • List Hygiene: Regularly cleaning your email list improves deliverability.
  • IP Warming: Gradually warming up new IPs is crucial for establishing trust.
  • Bounce Rate Monitoring: Monitoring bounce rates helps identify underlying problems.
  • Email Personalization: Tailoring emails to recipients boosts engagement and deliverability.
  • Seed List Testing: Ensures emails are delivered to the inbox, not spam folders.
  • Blocklist Monitoring: Proactively identifies IP or domain listings on blocklists.
  • Feedback Loops: Addresses recipient complaints and improves deliverability.
  • Postmaster Tools: Google Postmaster Tools helps identify issues with domain reputation and spam rate.

Key considerations

  • Holistic Approach: Deliverability requires a combination of strategies; no single method guarantees success.
  • Proactive Measures: Implement preventative measures (authentication, list hygiene) to avoid issues.
  • Continuous Monitoring: Deliverability is an ongoing process; constant monitoring and adjustment are needed.
  • Data-Driven Decisions: Base your deliverability strategies on data and insights from various tools and reports.
  • ISP Relationships: Maintaining positive relationships with ISPs is crucial for deliverability success.

What email marketers say
8Marketer opinions

To level up deliverability monitoring, several tools and methods can be employed. These include utilizing platforms like Validity's Everest for accurate inbox placement monitoring, using dedicated IPs to build a positive reputation, implementing sender authentication methods (SPF, DKIM, DMARC), regularly cleaning email lists, warming up new IPs gradually, monitoring bounce rates, personalizing emails, and using seed list testing. These strategies collectively help maintain a good sender reputation, ensure emails reach the inbox, and identify/resolve issues affecting deliverability.

Key opinions

  • Dedicated IPs: Using dedicated IPs helps build a positive reputation with ISPs, improving deliverability.
  • Sender Authentication: Implementing SPF, DKIM, and DMARC verifies sender identity and enhances deliverability.
  • List Cleaning: Regularly cleaning email lists maintains a good sender reputation.
  • IP Warming: Gradually warming up new IPs establishes a positive sender reputation with ISPs.
  • Bounce Rate Monitoring: Monitoring bounce rates helps identify deliverability issues.
  • Email Personalization: Personalizing emails increases engagement and improves deliverability.
  • Seed List Testing: Seed list testing ensures campaigns reach the inbox, not the spam folder.
  • Deliverability Platform: Validity Everest helps accurately monitor inbox placement.

Key considerations

  • Sender Reputation: Maintaining a positive sender reputation is critical for high deliverability.
  • Proactive Monitoring: Regularly monitor deliverability metrics to identify and resolve issues promptly.
  • Authentication Standards: Adhering to authentication standards (SPF, DKIM, DMARC) is essential for trust.
  • List Hygiene: Poor list hygiene can severely impact deliverability; regularly clean your lists.
  • Engagement: High engagement rates (opens, clicks) signal positive sender reputation.
Marketer view

Email marketer from Stack Overflow explains that monitoring bounce rates helps identify issues with email list quality and server configuration that can impact deliverability.

March 2022 - Stack Overflow
Marketer view

Email marketer from Mailjet explains that using dedicated IPs can improve deliverability by building a positive reputation with ISPs.

November 2021 - Mailjet
Marketer view

Marketer from Email Geeks shares to not forget about Validity and their Everest platform. The size of their sensor and data network makes them a prime candidate for people looking to monitor inbox placement as accurately as possible.

January 2024 - Email Geeks
Marketer view

Email marketer from Sendinblue explains the importance of implementing sender authentication methods like SPF, DKIM, and DMARC to verify the sender's identity and improve deliverability.

March 2025 - Sendinblue
Marketer view

Email marketer from Gmass explains that tailoring each email to the individual recipient is crucial for increasing engagement and improving email deliverability.

February 2023 - Gmass
Marketer view

Email marketer from Campaign Monitor explains that regularly cleaning your email list by removing inactive or invalid email addresses helps maintain a good sender reputation and improves deliverability.

September 2024 - Campaign Monitor
Marketer view

Email marketer from Reddit shares that gradually increasing sending volume with a new IP address (warming the IP) is crucial to establishing a good sender reputation with ISPs.

October 2021 - Reddit
Marketer view

Email marketer from EmailToolTester explains that Seed list testing can help you ensure your campaigns are reaching the inbox, not the spam folder.

August 2024 - EmailToolTester

What the experts say
3Expert opinions

Leveling up deliverability monitoring involves several key approaches. First, utilizing your own reporting data such as bounces, opens, clicks, and opt-outs, segmented by domain, provides a crucial baseline for identifying trends. Second, implementing blocklist monitoring tools enables proactive identification of IP or domain listings, facilitating timely corrective actions. Lastly, establishing feedback loops with ISPs is vital for addressing recipient complaints and improving overall deliverability.

Key opinions

  • Internal Reporting: Baseline trending of bounces, opens, clicks, and opt-outs (by domain) is crucial.
  • Blocklist Monitoring: Blocklist monitoring tools proactively identify IP or domain listings.
  • Feedback Loops: Feedback loops with ISPs address recipient complaints and improve deliverability.

Key considerations

  • Data Segmentation: Segmenting internal reporting data by domain provides valuable insights.
  • Proactive Measures: Proactively monitoring blocklists allows for timely corrective actions.
  • ISP Relationships: Establishing and maintaining feedback loops with ISPs is essential for deliverability.
  • Actionable Insights: Insights from monitoring and feedback loops are only valuable if acted upon to improve practices.
Expert view

Expert from Spam Resource explains that using blocklist monitoring tools helps to proactively identify if your sending IP or domain has been listed, allowing you to take corrective action.

May 2023 - Spam Resource
Expert view

Expert from Word to the Wise explains that setting up feedback loops with ISPs is crucial to identify and address complaints from recipients that may impact deliverability.

May 2024 - Word to the Wise
Expert view

Expert from Email Geeks explains not to overlook your own reporting. Your own baseline trending (bounces, opens, clicks, opt-outs - by domain for your largest audience domains) should be a key part of your program.

July 2024 - Email Geeks

What the documentation says
5Technical articles

To enhance email deliverability monitoring, leveraging tools like Google Postmaster Tools is essential for tracking domain reputation and spam rates. Microsoft provides a Sender Reputation service to filter unwanted emails. Implementing SPF, DKIM, and DMARC is vital for email authentication, preventing spoofing, and ensuring messages are authorized. These methods collectively help maintain deliverability and prevent unauthorized use of your domain.

Key findings

  • Google Postmaster Tools: Monitors domain reputation, spam rate, and deliverability metrics.
  • Microsoft Sender Reputation: Filters unwanted emails using a multi-layered system.
  • SPF: Prevents spammers from sending messages on behalf of your domain.
  • DKIM: Detects email spoofing and ensures messages are authorized.
  • DMARC: Protects domains from unauthorized use and email spoofing.

Key considerations

  • Regular Monitoring: Continuously monitor deliverability metrics using Google Postmaster Tools.
  • Authentication Implementation: Properly implement and maintain SPF, DKIM, and DMARC records.
  • Sender Reputation: Understand and manage your sender reputation with Microsoft.
  • Prevention Focus: Prioritize preventative measures against spam and spoofing.
Technical article

Documentation from DKIM explains that DKIM is a DomainKeys Identified Mail. It's goal is to reduce spam. It is an email authentication system designed to detect email spoofing by providing a mechanism to allow mail receivers to determine that incoming email from a domain was authorized by the domain's administrator.

September 2023 - DKIM.org
Technical article

Documentation from Google Postmaster Tools Help explains how to use Google Postmaster Tools to monitor your domain's reputation, spam rate, and other deliverability metrics to identify and fix issues.

January 2023 - Google Postmaster Tools Help
Technical article

Documentation from RFC explains that The Sender Policy Framework (SPF) is an email-authentication technique used to prevent spammers from sending messages on behalf of your domain.

February 2025 - RFC
Technical article

Documentation from Microsoft explains that they provide a Sender Reputation service that filters out spam or otherwise unwanted e-mail from the Internet. They use a multi-layered system that may or may not flag your emails.

December 2021 - Microsoft
Technical article

Documentation from DMARC explains that DMARC is a Domain-based Message Authentication, Reporting & Conformance. It is an email authentication protocol. It is designed to give email domain owners the ability to protect their domain from unauthorized use, commonly known as email spoofing.

June 2022 - Dmarc.org