What TLDs should be avoided for email domains due to spam or reputation issues?

Summary

Selecting the right Top-Level Domain (TLD) is crucial for email deliverability. Several TLDs like .io, .xyz, .top, .tk, .ga, .cf, and .gq are frequently associated with spam or have a poor reputation due to abuse. These can trigger spam filters and negatively impact deliverability. While .org domains might face compliance issues, it is also important to research and monitor all TLDs' reputations before using them. Email providers and organizations such as Spamhaus, ICANN, Google, and Microsoft recommend using reputable domains, monitoring sending behavior, and maintaining a clean sending reputation to avoid deliverability issues. Content and sending practices remain crucial, regardless of the chosen TLD. Startups using non-.com TLDs may also face reputation challenges.

Key findings

  • TLD Reputation Matters: The choice of TLD significantly impacts email deliverability due to its association with spam and overall reputation.
  • High-Risk TLDs: TLDs such as .io, .xyz, .top, .tk, .ga, .cf, and .gq are often linked to spam and abuse, increasing the risk of deliverability issues.
  • Importance of Monitoring: Continuous monitoring of TLD and domain reputation is essential for identifying and addressing potential deliverability problems.
  • No Guaranteed Block: Major email providers may not explicitly block TLDs but advise using reputable domains and maintaining a clean sending reputation.

Key considerations

  • Thorough Research: Conduct thorough research on the reputation of a TLD before using it for email marketing.
  • Reputable TLDs: Prioritize using well-established and reputable TLDs like .com, .net, or .org.
  • Monitor Reputation: Implement tools to continuously monitor your domain and TLD reputation.
  • Strong Sending Practices: Ensure responsible sending practices and high-quality content to maintain a good sending reputation.
  • Compliance Considerations: Be aware of potential compliance issues associated with certain TLDs like .org.
  • New TLD Evaluation: Carefully evaluate the registration policies, monitoring practices, and abuse history of new TLDs before adopting them.

What email marketers say
9Marketer opinions

Choosing the right Top-Level Domain (TLD) is important for email deliverability. Some TLDs, such as .io, .xyz, .top, .tk, .ga, .cf, and .gq, are often associated with spam or have a poor reputation due to frequent abuse. These TLDs can trigger spam filters and negatively impact email deliverability. Startups using non-.com TLDs may face reputation challenges. It is crucial to research the reputation of a TLD before using it for email marketing and consider sticking to more reputable TLDs like .com, .net, or .org for safer deliverability. Content and sending practices are also critical factors, regardless of the TLD.

Key opinions

  • Spam Association: Certain TLDs are disproportionately used by spammers, leading to a higher risk of being flagged as spam.
  • Reputation Impact: The TLD can influence how recipients and spam filters perceive emails, impacting trust and deliverability.
  • Startup Challenges: Startups using non-.com TLDs may face an uphill battle in establishing a positive email reputation.
  • Free TLD Risks: TLDs offered for free or at very low costs are often exploited for malicious activities, harming sender reputation.

Key considerations

  • Research TLD Reputation: Before choosing a TLD, thoroughly research its reputation to avoid potential deliverability issues.
  • Stick to Reputable TLDs: Using well-known and reputable TLDs like .com, .net, or .org can improve trust and deliverability.
  • Content and Practices: While TLD matters, content quality and responsible sending practices are still crucial for email deliverability.
  • Monitoring: Continuously monitor your domain and TLD reputation to identify and address any deliverability problems promptly.
Marketer view

Email marketer from Mailjet responds that the TLD can play a role in how recipients and spam filters perceive your emails. Choosing a reputable and recognizable TLD can improve trust and increase open rates, while lesser-known TLDs might face deliverability challenges.

February 2023 - Mailjet
Marketer view

Email marketer from EmailToolTester explains that while the TLD itself might not be a primary factor, some are disproportionately used by spammers. They advise researching the reputation of a TLD before committing to it, emphasizing that content and sending practices are more important.

April 2022 - EmailToolTester
Marketer view

Email marketer from StackExchange shares that TLDs like .tk, .ga, .cf, and .gq (often associated with free domain services) have a poor reputation due to widespread abuse by spammers. Using these TLDs can significantly harm your email deliverability.

August 2021 - StackExchange
Marketer view

Email marketer from Quora explains that while not all emails from certain TLDs are spam, some TLDs attract a higher proportion of spammers due to lax registration policies or other factors. This can lead to increased scrutiny from spam filters.

April 2023 - Quora
Marketer view

Email marketer from Reddit shares that using less common TLDs like .xyz or .top can sometimes raise red flags with spam filters, leading to lower deliverability rates. Sticking to more reputable TLDs such as .com, .net, or .org is generally safer.

July 2021 - Reddit
Marketer view

Marketer from Email Geeks shares that the vast majority of .io email they receive is spam, but enough legit organizations use it that they can't block it outright, though it receives a high score in their filters.

July 2023 - Email Geeks
Marketer view

Email marketer from Neil Patel's Blog explains that some TLDs are associated with higher spam rates, negatively impacting deliverability. It's crucial to research a TLD's reputation before using it for email marketing.

October 2024 - Neil Patel's Blog
Marketer view

Marketer from Email Geeks explains that startups using TLDs other than .com face an uphill battle regarding reputation, making it a harder sell to reputation systems.

February 2023 - Email Geeks
Marketer view

Email marketer from Web Hosting Forum says to avoid TLDs offered for free or at extremely low costs, as they are frequently used for malicious purposes. Building a positive sending reputation is much harder with these TLDs.

April 2023 - Web Hosting Forum

What the experts say
3Expert opinions

Experts recommend careful consideration of TLD choice for email domains. One expert advises avoiding .org domains due to potential compliance issues and domain suspension threats. Monitoring the reputation of chosen TLDs is crucial as some attract spammers. When considering new TLDs, assess registration policies, monitoring practices, and the TLD's history of abuse. TLDs with weak enforcement or a spam history are likely to cause deliverability problems.

Key opinions

  • .org Concerns: .org domains may face issues related to compliance and potential domain suspension based on spam reports.
  • TLD Monitoring: Monitoring the reputation of your chosen TLD is essential to avoid deliverability issues.
  • Abuse History: A TLD's history of abuse and the strength of its enforcement policies are critical factors in its suitability for email.

Key considerations

  • Compliance Risks: Evaluate the potential risks associated with specific TLDs, such as compliance issues for .org domains.
  • Reputation Tracking: Implement tools and resources to track the reputation of your chosen TLD continuously.
  • Due Diligence: Conduct thorough due diligence on new TLDs, assessing their registration policies and historical data, before using them.
Expert view

Expert from Email Geeks advises clients to avoid .org domains due to potential threats or suspension of registration based on individual spam reports, highlighting issues with excessive compliance.

December 2021 - Email Geeks
Expert view

Expert from Spam Resource explains that it's crucial to monitor the reputation of the TLD you choose, as some TLDs may attract spammers. She suggests tools and resources for tracking domain and TLD reputation to avoid deliverability issues.

June 2024 - Spam Resource
Expert view

Expert from Word to the Wise shares that when considering new TLDs, assess their registration policies, monitoring practices, and history of abuse. A TLD with weak enforcement or a history of spam is more likely to cause deliverability problems.

June 2022 - Word to the Wise

What the documentation says
4Technical articles

Email providers and organizations like Spamhaus, ICANN, Google, and Microsoft emphasize the importance of TLD choice for email deliverability. Spamhaus maintains lists of TLDs exploited by spammers, which email providers use for filtering. ICANN encourages reporting TLDs with high abuse rates. Google Postmaster Tools monitors domain and IP reputation, indirectly penalizing domains using TLDs associated with spam. Microsoft advises using reputable domains for better deliverability to Outlook.com and Hotmail, focusing on maintaining a clean sending reputation.

Key findings

  • Spamhaus Lists: Spamhaus provides lists of TLDs frequently used by spammers, aiding email providers in spam filtering.
  • ICANN Reporting: ICANN supports reporting TLDs with high abuse rates to promote responsible management.
  • Reputation Matters: Google and Microsoft consider domain and IP reputation, which can be indirectly affected by the chosen TLD.
  • No Explicit Blocking: While they don't explicitly block TLDs, major email providers advise using reputable domains for optimal deliverability.

Key considerations

  • Check Spam Lists: Consult resources like Spamhaus lists to identify TLDs with a history of abuse.
  • Report Abuse: Contribute to a safer email ecosystem by reporting TLDs with high rates of spam and abuse to ICANN.
  • Monitor Reputation: Regularly monitor your domain and IP reputation using tools like Google Postmaster Tools.
  • Prioritize Reputation: Choose reputable domains and maintain a clean sending reputation to improve deliverability across major email providers.
Technical article

Documentation from ICANN highlights the importance of reporting TLDs with high rates of abuse. While ICANN doesn't explicitly block TLDs, it encourages responsible management and offers resources for reporting abuse, which can indirectly impact TLD reputation.

November 2023 - ICANN
Technical article

Documentation from Google Postmaster Tools shares that domain and IP reputation directly affect deliverability to Gmail users. Google doesn't specifically blacklist TLDs but monitors sending behavior, so using a TLD associated with spam may indirectly affect reputation.

December 2021 - Google
Technical article

Documentation from Microsoft explains that while they don't specifically block by TLD, they advise senders to use reputable domains. Maintaining a clean sending reputation is key to reaching Outlook.com and Hotmail inboxes.

April 2021 - Microsoft
Technical article

Documentation from Spamhaus maintains lists of TLDs frequently exploited by spammers. These lists are used by email providers to filter out spam and improve deliverability. Checking these lists can help avoid using problematic TLDs.

April 2022 - Spamhaus