Why am I seeing bounce rate spikes on campaigns attributed to Verizon Media Group?

Summary

Bounce rate spikes at Verizon Media Group (VMG), encompassing Yahoo and AOL, are complex. Root causes range from VMG-specific issues like server maintenance or stricter filtering, to sender-controlled factors. Reputation damage due to poor list hygiene (old/unengaged addresses, spam traps), low engagement, and blocklisting significantly impact deliverability. Technical aspects like misconfigured SPF/DKIM/DMARC authentication cause rejections. Further, changes in user behavior (spam reporting), algorithm updates by VMG, and improper handling of bounce codes compound the problem. Analyzing bounce messages and utilizing VMG's Postmaster Tools are crucial for diagnosis and resolution.

Key findings

  • VMG as Yahoo/AOL: Verizon Media Group includes both Yahoo and AOL domains.
  • Reputation Impact: Poor sender reputation heavily influences bounce rates.
  • Technical Configurations: Incorrect SPF, DKIM, and DMARC configurations lead to rejections.
  • List Hygiene Matters: Outdated lists with spam traps significantly increase bounces.
  • Engagement is Key: Low user engagement can trigger throttling and blocking.
  • Bounce Code Significance: Analyzing bounce codes is critical for understanding failure reasons.
  • Algorithmic Shifts: VMG may have updated spam filtering algorithms.

Key considerations

  • Monitor Reputation: Routinely monitor IP and domain reputation using available tools.
  • Implement Authentication: Ensure proper setup and validation of SPF, DKIM, and DMARC records.
  • Practice List Hygiene: Regularly clean email lists by removing inactive and invalid addresses.
  • Analyze Bounce Messages: Thoroughly analyze bounce message content to identify specific issues.
  • Address Blocklisting: Check IP/domain against common blocklists and take corrective action if listed.
  • Utilize Postmaster Tools: Leverage Verizon Media Postmaster Tools for reputation monitoring and diagnostics.
  • Review VMG Policies: Stay informed about any changes in VMG's sending policies and requirements.
  • Contact Support: Reach out to the address provided in bounce messages, and if needed, escalate via Yahoo postmaster page.
  • Address Segmentation: Carefully review audience segmentation and targeting practices

What email marketers say
9Marketer opinions

Bounce rate spikes with Verizon Media Group (Yahoo/AOL) can stem from several factors. Technical issues like server problems or policy changes at Verizon Media Group's end, or shifts in their spam filtering practices can all cause bounces. Sending practices, such as poor list hygiene (outdated or unengaged emails, spam traps), poor IP reputation, or content being flagged as spam can lead to blocks and bounces. Also, not following email authentication best practices (SPF, DKIM, DMARC) can cause Verizon Media Group to reject emails.

Key opinions

  • Filtering Changes: Verizon Media Group may have updated spam filters.
  • List Hygiene: Outdated lists and spam traps can increase bounces.
  • Reputation Impact: Poor IP reputation leads to higher bounce rates.
  • Authentication Issues: Incorrect SPF/DKIM records cause rejected emails.
  • Engagement Impact: Low engagement can result in email blocking.
  • Policy Change: Recipient server implementing a new policy.

Key considerations

  • Monitor Reputation: Regularly check your IP and domain reputation.
  • Authenticate Email: Ensure SPF, DKIM, and DMARC are correctly set up.
  • Clean Email Lists: Remove inactive or unengaged addresses.
  • Content Review: Assess email content for potential spam triggers.
  • Monitor Engagement: Monitor the engagement rates on emails sent to Verizon domains.
  • Review Policies: Review recent changes in Verizon Media Group policies.
Marketer view

Email marketer from EmailOversight Blog explains that Verizon Media Group (Yahoo/AOL) can be tricky. Temporary issues like overloaded servers or maintenance can cause spikes. Also, stricter filtering or reputation changes can lead to increased bounces.

September 2021 - EmailOversight Blog
Marketer view

Email marketer from Mailgun shares that high bounce rates will cause email providers like Verizon Media Group to throttle or block emails. Low engagement signals could be the cause, meaning you need to be sending emails that people want to receive.

April 2021 - Mailgun
Marketer view

Email marketer from Litmus suggests that poor list hygiene can significantly impact deliverability. Sending to outdated or unengaged email addresses can result in a high bounce rate and negatively affect your sender reputation, especially with providers like Verizon Media Group.

March 2023 - Litmus
Marketer view

Email marketer from Mailjet Blog shares that high bounce rates on older lists can occur because many addresses become inactive or abandoned over time, leading to hard bounces when these emails are sent to those outdated addresses. This can be further exacerbated if these addresses are now recycled as spam traps.

May 2024 - Mailjet Blog
Marketer view

Email marketer from Reddit shares that AOL (part of Verizon Media Group) has become stricter with its spam filtering. If your sending IP has a poor reputation, or your content is flagged as spam, AOL may block your emails, leading to bounces.

October 2022 - Reddit
Marketer view

Email marketer from IPWarmup Blog explains that Verizon Media Group takes IP reputation seriously. If your sending IP has been associated with spam activity, it can lead to a higher bounce rate. Use tools to check your IP reputation and take steps to improve it.

July 2022 - IPWarmup Blog
Marketer view

Email marketer from Email Marketing Forum theorizes that Verizon Media Group may have recently implemented stricter filtering rules or updated their spam detection algorithms, causing a sudden increase in bounce rates for senders who were previously compliant. Could also be related to new DMARC requirements.

December 2021 - Email Marketing Forum
Marketer view

Email marketer from SendGrid Help Center responds that a sudden increase in bounce rate can be due to a number of things, like a change in sending practices, or the recipient server implementing a new policy.

February 2022 - SendGrid Help Center
Marketer view

Email marketer from StackOverflow suggests ensuring SPF and DKIM records are correctly configured. Incorrect or missing authentication can cause Verizon Media Group to reject emails, resulting in bounces.

August 2021 - StackOverflow

What the experts say
8Expert opinions

Bounce rate spikes with Verizon Media Group (Yahoo/AOL) can be attributed to multiple factors. These include reputation problems, changes in audience segmentation, address purging, and VMG decommissioning unused addresses. It's crucial to analyze bounce messages for specific reasons. Technical configurations like email authentication (SPF, DKIM, DMARC) are important and blocklisting can contribute to higher bounce rates. Changes in spam detection algorithms and user behavior, as well as infrastructure issues, can also play a role. Incorrect handling of bounce codes further exacerbates the problem.

Key opinions

  • VMG Identity: Verizon Media Group encompasses Yahoo and AOL.
  • Reputation Issues: Bounce spikes likely tied to sender reputation.
  • Bounce Analysis: Reading bounce messages is crucial for diagnosis.
  • Authentication Importance: Correct SPF, DKIM, and DMARC setup is vital.
  • Blocklisting Impact: Increased blocklisting use can raise bounce rates.
  • Behavioral Shifts: Changes in user spam reporting impact delivery.
  • Bounce Management: Improper bounce handling causes further issues.

Key considerations

  • Audience Segmentation: Review audience targeting and segmentation practices.
  • Address Purging: Actively purge unengaged and invalid addresses.
  • Bounce Message Analysis: Thoroughly analyze bounce messages for root causes.
  • Authentication Verification: Verify correct SPF, DKIM, and DMARC configuration.
  • Blocklist Monitoring: Check IP/domain against common blocklists.
  • Bounce Handling: Implement proper bounce management procedures.
  • Yahoo Escalation: Escalate through Yahoo postmaster page if needed.
Expert view

Expert from SpamResource explains that blocklisting can result in bounce rate spikes if Verizon Media Group starts using a particular blocklist more aggressively. Checking your IP and domain against common blocklists is advisable.

March 2023 - SpamResource
Expert view

Expert from Email Geeks emphasizes the importance of reading bounce messages, highlighting that ISPs craft them to communicate specific information to senders.

April 2023 - Email Geeks
Expert view

Expert from Email Geeks advises to reach out to the address provided in the bounce message. If there is no response, escalate through the Yahoo postmaster page.

December 2021 - Email Geeks
Expert view

Expert from Email Geeks explains ATT is partially Verizon, where they have their own SMTP service, but then it's handed off to Verizon for mailbox delivery and some ATT problems can be solved by contacting Yahoo.

April 2023 - Email Geeks
Expert view

Expert from Word to the Wise responds that the causes may be a shift in algorithms used to detect spam or marketing email, a shift in what users are doing (reporting spam, trashing instead of unsubscribing), or an infrastructure issue. Often sudden changes are related to the reputation of sending IPs.

August 2023 - Word to the Wise
Expert view

Expert from SpamResource responds that a key reason for deliverability issues is the failure to properly authenticate email using SPF, DKIM and DMARC standards. A lack of or misconfigured email authentication can lead to higher bounce rates as Verizon Media Group becomes increasingly strict about verifying sender identity.

August 2024 - SpamResource
Expert view

Expert from Email Geeks identifies Verizon Media Group as Yahoo and AOL, suggesting the bounce rate spikes are likely due to reputation issues. She advises examining audience segmentation, targeting changes, and address purging practices. Laura also mentions the possibility of VMG decommissioning unused addresses leading to hard bounces.

July 2023 - Email Geeks
Expert view

Expert from Word to the Wise explains that incorrect handling of bounces can cause problems. You need to handle the various bounce codes and act on them, so you are not repeatedly mailing to invalid addresses.

November 2022 - Word to the Wise

What the documentation says
5Technical articles

Bounce rate spikes with Verizon Media Group can be understood by analyzing SMTP reply codes (RFC 5321), which differentiate between permanent (5xx) and temporary (4xx) failures. Bounce messages contain vital information about delivery failures, potentially due to invalid addresses, blocked senders, or policy violations. Exceeding sending limits or violating policies (as outlined in Microsoft Learn) can lead to bouncebacks. The Verizon Media Postmaster Tools helps monitor sending reputation and identify deliverability problems. Examining bounce codes (SparkPost Documentation) can reveal patterns in delivery failures.

Key findings

  • SMTP Codes: 5xx codes indicate permanent failures, 4xx temporary.
  • Bounce Message Data: Bounce messages contain delivery failure details.
  • Policy Violations: Exceeding sending limits causes bouncebacks.
  • Reputation Monitoring: Postmaster tools monitor sending reputation.
  • Code Analysis: Analyzing bounce codes reveals failure patterns.

Key considerations

  • Code Interpretation: Understand meaning of SMTP reply codes.
  • Message Analysis: Carefully analyze bounce message content.
  • Policy Compliance: Adhere to sending limits and policies.
  • Tool Utilization: Use postmaster tools for reputation monitoring.
  • Pattern Identification: Identify trends in bounce codes to address issues.
Technical article

Documentation from SparkPost Documentation outlines common bounce codes and their meanings. Analyze bounce codes from Verizon Media Group to understand the specific reasons for delivery failures and identify patterns.

February 2023 - SparkPost Documentation
Technical article

Documentation from Google Workspace Admin Help explains that bounce messages contain valuable information about why an email couldn't be delivered, and they should be analyzed to understand the cause of increased bounce rates. Common reasons include invalid recipient addresses, blocked senders, or policy violations.

January 2022 - Google Workspace Admin Help
Technical article

Documentation from Verizon Media Postmaster Tools explains that it provides a way to monitor your sending reputation and diagnose deliverability issues with Yahoo and AOL domains. This includes monitoring bounce rates and identifying potential problems.

April 2024 - Verizon Media Postmaster
Technical article

Documentation from Microsoft Learn outlines the sending limits and policies in Exchange Online. Exceeding these limits or violating policies can result in temporary or permanent bouncebacks, and can affect deliverability and bounce rates.

July 2023 - Microsoft Learn
Technical article

Documentation from RFC 5321 explains that SMTP servers use reply codes to indicate the outcome of a mail transfer attempt. A 5xx code indicates a permanent failure (hard bounce), and a 4xx code indicates a temporary failure (soft bounce). Changes in these codes can indicate why there are increases in bounces.

July 2024 - RFC 5321


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