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Sinch Survey Reveals Major Gaps in Email Deliverability Despite 78% Recognizing its Importance

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53% of Senders Ignore Blocklist Monitoring, and 39% Neglect List Hygiene, Risking Deliverability and Customer Engagement

 

ATLANTA, Georgia, USA and STOCKHOLM, Sweden– October 31, 20204 – Sinch (Sinch AB (publ) – XSTO: SINCH), which is pioneering the way the world communicates through its Customer Communications Cloud, today unveiled its much-anticipated 2025 “State of Email Deliverability” report through its email platform, Mailgun. The report analyzes the most pressing challenges, emerging trends, and evolving strategies in email deliverability, offering businesses actionable insights to optimize email performance and reach their audiences more efficiently and effectively.

 

In the report, Mailgun surveyed over 1,100 email senders across various industries worldwide. Some of the standout findings involve the new sender requirements introduced by Google and Yahoo in 2024, which aim to make email inboxes safer and reduce spam. Lack of compliance with these updated requirements could significantly hinder a sender’s ability to reach users on platforms like Gmail and Yahoo mail. The survey also uncovered that many senders fail to follow basic email deliverability best practices, including blocklist monitoring and list hygiene, which could negatively impact organizations’ inbox placement rates.

 

“As businesses continue to rely on email as a cornerstone of their communications strategies, understanding and mastering email deliverability is more important than ever,” said Kate Nowrouzi, VP of Deliverability and Product Strategy at Sinch. “Our 2025 State of Email Deliverability Report provides in-depth analysis of the key factors shaping email performance today and offers strategic guidance to help businesses optimize their email delivery and maintain strong customer engagement.”

 

Key Finding from the 2025 Report:

 

  • 78.5% of senders acknowledged the critical importance of email deliverability to their organizations (rating the importance 8/10 or higher). However, the report uncovered several areas of concern:
    • 70% of senders are not utilizing resources such as Google Postmaster Tools to monitor their sender reputation with major mailbox providers.
  • 53% of senders are not actively monitoring email blocklists for their domains or sending IPs.
  • 39% of senders say they rarely or never conduct list hygiene.
  • Nearly 1 in 10 senders admitted to purchasing email lists or scraping the web for contacts in the last two years.
  • 63% of senders were at least somewhat familiar with Google/Yahoo’s new sender requirements.
  • Among senders who changed their email programs to comply with requirements, 79% updated email authentication practices.
  • There was an 11% increase in DMARC adoption compared to Mailgun’s previous deliverability survey.

“Through the insights in this report, businesses can better align their email programs with best practices and improve overall deliverability performance,” explained Nowrouzi. “In particular, updating authentication protocols, monitoring sender reputation, and maintaining clean and engaged lists are crucial steps for optimizing inbox placement and ensuring successful email campaigns.”

 

With the rise of sophisticated email filters and stricter requirements from mailbox providers, ensuring that email lands in inboxes rather than spam folders have become a more complex challenge for businesses. Sinch’s report provides actionable recommendations on key areas such as email authentication, reputation monitoring, and compliance while highlighting emerging industry trends.

 

For more information, please see the Sinch 2025 State of deliverability report https://s.sinch.com/3BTEOY0

 

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For further information, please contact: 
Janet Lennon, Director of PR and Global Communications

janet.lennon@sinch.com | 206-914-6175

About Sinch:

Sinch is pioneering the way the world communicates. More than 150,000 businesses – including many of the world's largest tech companies – rely on Sinch's Customer Communications Cloud to improve customer experience through mobile messaging, voice, and email. Sinch has been profitable and fast-growing since it was founded in 2008. It is headquartered in Stockholm, Sweden, with shares traded at NASDAQ Stockholm: XSTO:SINCH. Learn more at sinch.com.

Recent awards/recognition:

•       Sinch Named 2024 Adobe Digital Experience ISV Resell Partner of the Year

•       Sinch recognized as a Leader in the 2024 CPaaS Omdia Universe

•       Sinch named a Leader in the Gartner® Magic Quadrant™ for CPaaS 2024

•       Sinch named a Leader in the CPaaS Leaderboard, Juniper Research 2024

•       Sinch recognized as a Leader in the IDC MarketScape for CPaaS 2023

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