How do I repair a damaged Gmail sender reputation when moving to a new ESP?

Summary

Repairing a damaged Gmail sender reputation after moving to a new ESP requires a multifaceted approach focused on improving engagement, maintaining list hygiene, and ensuring proper technical configuration. Experts emphasize the importance of warming up your IP address by gradually increasing sending volume, focusing on sending engaging content to highly engaged users, and segmenting your email list. Utilizing Google Postmaster Tools is crucial for monitoring your sender reputation. Technical aspects include proper sender authentication (SPF, DKIM, DMARC) and ensuring a valid PTR record. Continuously monitoring complaint rates, avoiding spam traps, and seeking feedback through programs like Microsoft's JMRP are also essential.

Key findings

  • Engagement is Key: Prioritize engagement metrics like opens and clicks. Encourage recipients to mark emails as 'not spam' and provide valuable content.
  • IP Warming: Gradually increase sending volume when switching to a new ESP to establish a positive sending reputation.
  • List Hygiene: Clean your email list to remove inactive and invalid addresses. Avoid spam traps by using double opt-in and legitimate list acquisition methods.
  • Authentication: Implement SPF, DKIM, and DMARC to verify your identity and improve deliverability to Gmail.
  • Google Postmaster Tools: Monitor spam rates, IP reputation, and domain reputation using Google Postmaster Tools.
  • PTR Record: Ensure a valid PTR record maps your sending IP address to your domain name for reverse DNS lookups.
  • Monitor Complaints: Monitor complaint rates and unsubscribe requests. Address and rectify issues identified.
  • Feedback Loops: Set up feedback loops with Gmail and other ISPs to identify and remove problematic subscribers based on complaint rates.

Key considerations

  • Cause of Damage: Understand what damaged your sender reputation in the first place to avoid repeating the same mistakes.
  • Slow Ramp-Up: Avoid sending to Gmail too quickly. A gradual ramp-up is essential to rebuild trust.
  • Segment Unengaged: Segment unengaged subscribers and re-introduce them slowly to gauge tolerance levels.
  • Content Optimization: Identify and improve or remove content that receives low engagement.
  • Consistent Volume: Maintain a consistent sending volume to rebuild trust and avoid sudden spikes.
  • JMRP: Subscribe to Microsoft's Junk Email Reporting Program (JMRP) to receive feedback on user-reported junk mail.
  • Deliverability Metrics: Closely monitor deliverability metrics and adjust strategies to improve email delivery.
  • Value: Focus on providing value to subscribers.
  • Patience: Be patient - it will take time to repair a damaged sender reputation.

What email marketers say
10Marketer opinions

Repairing a damaged Gmail sender reputation after moving to a new ESP involves several key strategies. Primarily, focusing on engagement with highly engaged users is crucial, gradually increasing sending volume (IP warming) and ensuring consistent sending habits. List hygiene is paramount, requiring the removal of inactive or invalid email addresses and avoidance of spam traps. Sender authentication, engagement monitoring, and feedback loop implementation are also important. Segmenting your list and sending targeted content can further improve engagement and reputation.

Key opinions

  • Engagement Focus: Prioritize engagement metrics (opens, clicks) and encourage recipients to mark emails as 'not spam'.
  • IP Warming: Gradually increase sending volume to establish a positive sending reputation with Gmail.
  • List Hygiene: Remove inactive/invalid addresses and avoid spam traps through legitimate list acquisition and double opt-in.
  • Consistent Volume: Maintain a consistent sending volume to rebuild trust and avoid sudden spikes.
  • Segmentation: Segment your list based on engagement to send targeted content and improve overall engagement.
  • Feedback Loops: Set up feedback loops to identify and remove problematic subscribers based on complaint rates.

Key considerations

  • Cause of Damage: Understand the root cause of the reputation damage to implement appropriate corrective measures.
  • CTR vs. Open Rate: Prioritize click-through rate (CTR) over open rate due to Apple Mail Privacy Protection impacts.
  • Google Postmaster Tools: Utilize Google Postmaster Tools to monitor sender reputation, spam rate, and other key metrics.
  • Synchronize Lists: Synchronize bounces, unsubscribes, and inactives from the old ESP to prevent re-sending to these addresses.
  • Complaint Monitoring: Actively monitor complaint rates and unsubscribe requests to address and rectify underlying issues.
  • Authentication: Ensure proper sender authentication to build trust and improve deliverability.
Marketer view

Email marketer from GlockApps Blog emphasizes avoiding spam traps. Spam traps can severely damage your sender reputation. Ensure your list acquisition methods are legitimate and use double opt-in.

September 2023 - GlockApps Blog
Marketer view

Email marketer from ActiveCampaign Blog shares the advice to segment your email list based on engagement and send targeted content to each segment. This improves engagement and sender reputation.

May 2024 - ActiveCampaign Blog
Marketer view

Email marketer from Reddit explains that focusing on engagement metrics (opens, clicks) with your Gmail subscribers can help rebuild your sender reputation. Encourage recipients to mark your emails as 'not spam'.

October 2023 - Reddit
Marketer view

Email marketer from ReturnPath Blog (now Validity) shares the importance of setting up feedback loops (FBLs) with Gmail and other ISPs. FBLs provide data on complaint rates, helping you identify and remove problematic subscribers.

March 2021 - ReturnPath Blog (now Validity)
Marketer view

Email marketer from Mailjet Blog shares the importance of warming up your IP address when switching ESPs, by gradually increasing sending volume to establish a positive sending reputation with Gmail.

May 2023 - Mailjet Blog
Marketer view

Marketer from Email Geeks explains that it's more about engagement (opens/clicks/replies) with highly engaged users than it is about specific messaging and recommends starting with a small portion of engaged subscribers and slowly ramping up over time, they also say the cause of the reputation damage is more instructive about changes needed.

February 2023 - Email Geeks
Marketer view

Email marketer from Email Marketing Forum explains that maintaining a consistent sending volume can help rebuild trust with Gmail. Avoid sudden spikes in sending volume.

February 2023 - Email Marketing Forum
Marketer view

Email marketer from Sendinblue Blog shares the importance of cleaning your email list to remove inactive or invalid email addresses. Sending emails to only engaged subscribers improves your sender reputation with Gmail.

December 2024 - Sendinblue Blog
Marketer view

Marketer from Email Geeks shares that sending slowly is important to avoid hitting Gmail too fast, also segmenting engaged users and notes CTR is more useful now than open rate, also synchronizing bounces, unsubscribes, inactives from the old ESP to avoid sending to them again and recommends using Google Postmaster Tools.

April 2021 - Email Geeks
Marketer view

Email marketer from Litmus Blog explains the need to monitor complaint rates and unsubscribe requests, addressing and rectifying issues identified can help demonstrate that you respect your recipients and are responsive to feedback.

January 2023 - Litmus Blog

What the experts say
3Expert opinions

Repairing a damaged Gmail sender reputation after migrating to a new ESP involves a multi-faceted approach centered on re-engagement, deliverability optimization, and reputation rebuilding. Experts emphasize the importance of strategically re-introducing unengaged subscribers in manageable chunks, focusing on consistent and valuable engagement, and ensuring proper email authentication. Patience is key, as repairing reputation damage is a gradual process that necessitates monitoring deliverability metrics and adjusting strategies as needed to maximize engagement and provide value to subscribers.

Key opinions

  • Strategic Re-engagement: Gradually re-introduce unengaged subscribers in small groups to gauge tolerance levels and avoid triggering spam filters.
  • Consistent Engagement: Prioritize consistent and valuable interactions with subscribers to foster positive engagement and improve sender reputation.
  • Email Authentication: Implement proper email authentication protocols to verify sender identity and enhance deliverability to Gmail.
  • Value-Driven Content: Focus on providing valuable content that resonates with subscribers to encourage engagement and prevent spam complaints.
  • Improved List Hygiene: Maintain a clean and up-to-date email list to reduce bounce rates and improve overall deliverability.

Key considerations

  • Patience is Key: Recognize that repairing a damaged sender reputation is a time-consuming process that requires consistent effort and monitoring.
  • Cadence Adjustment: Slow down the sending cadence for unengaged subscribers to avoid overwhelming their inboxes and triggering spam filters.
  • Content Optimization: Identify and improve or remove content that receives low engagement to optimize deliverability and avoid negative impacts on sender reputation.
  • Monitoring Deliverability Metrics: Closely monitor deliverability metrics, such as bounce rates, complaint rates, and engagement rates, to assess the effectiveness of reputation repair efforts.
  • Iterative Approach: Adapt strategies based on deliverability metrics to ensure optimization and continuous improvements to sender reputation.
Expert view

Expert from Spam Resource explains that deliverability issues in 2022 can be addressed by focusing on providing value to subscribers, improving list hygiene, authenticating email and watching sending reputation metrics.

May 2022 - Spam Resource
Expert view

Expert from Word to the Wise explains that sender reputation damage can take time to repair, and recommends focusing on consistent engagement, proper authentication, and gradual increases in sending volume, while closely monitoring deliverability metrics.

May 2022 - Word to the Wise
Expert view

Expert from Email Geeks shares advice to break unengaged subscribers into chunks and re-introduce them slowly into weekly mailings to gauge the tolerance level before bulking, they also mention slowing the cadence for unengaged segments spread over a week or two monthly or quarterly and suggest identifying and improving or removing content with atrociously low engagement.

December 2024 - Email Geeks

What the documentation says
4Technical articles

Repairing a damaged Gmail sender reputation involves proactive monitoring and robust authentication methods. Google Postmaster Tools are essential for monitoring spam rates and IP/domain reputation to identify deliverability issues. Proper sender authentication (SPF, DKIM, DMARC) builds trust with Gmail. A valid PTR record matching IP address to domain is crucial for reverse DNS lookups, while participating in Microsoft's JMRP helps gather feedback on user-reported junk mail.

Key findings

  • Google Postmaster Tools: Utilizing Google Postmaster Tools provides insights into spam rate, IP reputation, and domain reputation to diagnose deliverability problems.
  • Sender Authentication: Implementing SPF, DKIM, and DMARC is critical to verify your identity and improve trust with Gmail, positively affecting deliverability.
  • PTR Records: A valid PTR record that maps your sending IP address to your domain name is crucial for reverse DNS lookups.
  • Junk Email Reporting Program (JMRP): Subscribing to Microsoft's JMRP provides feedback on when users mark your mail as junk, helping identify and address issues proactively.

Key considerations

  • Proactive Monitoring: Regularly monitor your sender reputation metrics using tools like Google Postmaster Tools to identify and address issues before they significantly impact deliverability.
  • Technical Implementation: Ensure accurate and complete configuration of SPF, DKIM, and DMARC records to maximize the effectiveness of sender authentication.
  • DNS Configuration: Verify that your PTR record is correctly configured to match your sending IP address and domain name, which is essential for reverse DNS lookups.
  • Feedback Analysis: Analyze feedback from the JMRP program to identify patterns and address potential issues related to user-reported junk mail.
Technical article

Documentation from Microsoft states subscribing to the Junk Email Reporting Program (JMRP) provides feedback on when users mark your mail as junk, allowing you to identify and address issues.

December 2021 - Microsoft
Technical article

Documentation from SparkPost Documentation states that setting up proper sender authentication (SPF, DKIM, DMARC) is crucial to verify your identity and improve deliverability to Gmail by building trust.

November 2023 - SparkPost Documentation
Technical article

Documentation from RFC explains that ensuring you have a valid PTR record that matches your sending IP address to your domain name is crucial for reverse DNS lookups and can affect deliverability.

August 2024 - RFC-1912
Technical article

Documentation from Google Postmaster Tools Help explains that using Google Postmaster Tools allows you to monitor your sender reputation by providing data on spam rate, IP reputation, and domain reputation, helping identify issues impacting deliverability.

September 2023 - Google Postmaster Tools Help