Mailchimp Emails Going To Spam? How To Fix.

Are your Mailchimp emails ending up in the dreaded spam folder? Don’t worry, we’ve got you covered! In this article, we’ll show you how to fix this common issue and ensure that your emails successfully land in your recipients’ primary inbox. So, if you’re tired of your carefully crafted campaigns going unnoticed, keep reading to discover some simple yet effective strategies to overcome the Mailchimp spam filter and improve email deliverability.

Understanding the Spam Folder

When it comes to email deliverability, understanding how the spam folder works is crucial. Here are some key points to keep in mind:

  1. Spam Filters: Email providers employ sophisticated algorithms and filters to detect and categorize incoming emails as either legitimate or spam. These filters consider various factors such as subject lines, content, sender reputation, and user behavior.

  2. False Positives: Sometimes legitimate emails may end up in the spam folder by mistake. This can happen due to overactive spam filters or if certain elements of your email trigger red flags for the filter.

  3. Content Considerations: Certain content elements within your email could increase its chances of being marked as spam. Avoid using excessive capitalization, multiple exclamation marks, or misleading subject lines that may appear suspicious.

  4. Sender Reputation: Your sender reputation plays a significant role in determining whether your emails will land in the inbox or get flagged as spam. Factors like sending domain authentication (SPF, DKIM), IP address reputation, and engagement rates impact your reputation.

  5. User Behavior Signals: User actions also influence how an email provider classifies messages into folders. If recipients consistently mark your emails as junk mail without opening them or move them into their spam folders manually, it can negatively impact future deliverability.

To improve your chances of avoiding the dreaded spam folder:

  • Follow best practices for email marketing.
  • Regularly monitor bounce rates and unsubscribe requests.
  • Ask recipients to add you to their contacts list.
  • Encourage subscribers to engage with your emails by clicking on links or replying.
  • Segment your mailing list based on user preferences and behaviors.

Remember that while you have limited control over individual users’ settings and preferences regarding filtering rules, adhering to industry standards reduces the likelihood of having Mailchimp campaigns land in recipients’ spam folders unnecessarily

Common Reasons for Mailchimp Emails Going to Spam

When your Mailchimp emails end up in the spam folder instead of the recipient’s inbox, it can be frustrating and impact the effectiveness of your email marketing campaigns. Understanding the common reasons behind this issue is crucial for improving deliverability rates. Here are some possible causes:

  1. Poor Sender Reputation: If you have a low sender reputation, ISPs (Internet Service Providers) may flag your emails as spam. Factors that contribute to a poor sender reputation include high bounce rates, spam complaints from recipients, or sending emails to inactive addresses.

  2. Lack of Authentication: Properly authenticating your domain and email address adds credibility and helps prevent spoofing or phishing attempts. Implementing SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication Reporting & Conformance) protocols can significantly improve deliverability.

  3. Misleading Subject Lines: Using deceptive subject lines with excessive capitalization or misleading content can trigger spam filters and lead to lower engagement rates.

  4. Spam Trigger Words: Certain words commonly associated with spam can cause your emails to be flagged by filters, even if they contain legitimate content. Avoid using phrases like “free,” “limited time offer,” “discount,” or anything overly promotional in nature.

  5. HTML Coding Issues: Poorly coded HTML emails might trigger spam filters due to broken tags, excessive use of images without alt text, or improper formatting that affects display across different devices.

  6. Unengaged Subscribers: Sending emails consistently to recipients who haven’t opened any of them for an extended period could harm your deliverability rate since ISP algorithms interpret lack of engagement as a sign of potential unwanted mail.

  7. Sending Frequency – Bombarding subscribers with too many frequent emails may result in higher opt-out rates and increased chances of being marked as spam by users who find it overwhelming.

To improve your email deliverability and avoid spam filters, it’s essential to follow best practices such as maintaining a clean subscriber list, regularly monitoring sender reputation, using authentications protocols, and creating engaging content that resonates with your audience.

Checking Your Email Deliverability

To ensure that your Mailchimp emails reach the inbox and avoid being marked as spam, it’s crucial to regularly check your email deliverability. Follow these steps to monitor and improve your email deliverability:

  1. Check Sender Reputation: Start by assessing the reputation of the sender domain you use for sending emails. Use tools like SenderScore or Reputation Authority to determine if there are any issues affecting your email delivery.

  2. Authenticate Your Domain: Authenticate your domain using SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). This helps mailbox providers identify legitimate senders and improves the chances of reaching the inbox rather than being flagged as spam.

  3. Monitor Bounce Rates: Keep a close eye on bounce rates, which indicate unsuccessful delivery attempts due to invalid or non-existent email addresses. Regularly clean up your subscriber list by removing bounced addresses to maintain good deliverability.

  4. Segment Your Audience: Divide your subscribers into smaller segments based on their preferences, interests, or engagement levels. By sending targeted content relevant to each segment, you can increase engagement and reduce the likelihood of recipients marking your emails as spam.

  5. Avoid Spam Trigger Words: Craft compelling subject lines without using common trigger words that might raise red flags with mailbox providers’ spam filters. Examples include “Free,” “Urgent,” or excessive use of exclamation marks (!!!).

  6. Test Different Content Formats: Experiment with various content formats such as plain text vs HTML newsletters to see what resonates best with your audience while maintaining good deliverability rates.

  7. Maintain Consistent Sending Frequency: Avoid sudden spikes in email volume or long periods of inactivity between campaigns, as this can negatively impact deliverability rates.

  8. Analyze Email Engagement Metrics: Monitor open rates, click-through rates (CTR), and other engagement metrics to understand how well your subscribers are responding to your emails. Low engagement can be a sign of deliverability issues or content that doesn’t resonate with recipients.

By following these steps, you can proactively monitor and improve your email deliverability, ensuring that your Mailchimp emails reach the intended inbox and avoid being marked as spam.

Improving Sender Reputation

To ensure your Mailchimp emails are not going to spam, it’s crucial to focus on improving your sender reputation. Here are some effective strategies to enhance your email deliverability rates:

  1. Authenticate Your Domain: Implementing authentication protocols like SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) will verify that you are the authorized sender for your domain. This helps establish trust with email providers.

  2. Maintain a Clean Email List: Regularly clean up your subscriber list by removing inactive or bounced email addresses. High bounce rates can negatively impact your sender reputation, so it’s important to keep it updated.

  3. Send Engaging Content: Craft well-designed and engaging emails that provide value to recipients. Relevant content and personalized messages improve engagement levels and reduce the likelihood of users marking them as spam.

  4. Avoid Spam Triggers: Steer clear of common spam triggers such as excessive use of capital letters, misleading subject lines, or using too many exclamation marks in your emails’ content.

  5. Manage Complaints Promptly: Monitor feedback loops provided by ISPs (Internet Service Providers) to identify any complaints against your sent emails promptly. Take necessary actions when needed, such as unsubscribing those who complain or investigating the root cause of their dissatisfaction.

  6. Monitor Blacklists: Regularly check if your IP address has been blacklisted by popular DNS-based blacklists like Spamhaus or Barracuda Central. If you find yourself listed, take immediate steps towards removal by following each blacklist’s delisting procedures.

  7. Maintain Consistency in Sending Volume: Avoid sudden spikes in sending volume as this may raise red flags among ISPs about potential spamming activities from your end.

By implementing these practices and continuously monitoring and refining them over time, you can significantly improve the chances of avoiding the dreaded spam folder for your Mailchimp emails.

Creating Engaging and Relevant Content

When it comes to email marketing, creating engaging and relevant content is key to ensuring your Mailchimp emails don’t end up in the spam folder. Here are some tips to help you create compelling content that will grab your subscribers’ attention:

  1. Know Your Audience: Understand who your target audience is and what they’re interested in. Tailor your content specifically for them by conducting market research, analyzing subscriber data, or sending out surveys.

  2. Craft Catchy Subject Lines: The subject line is the first thing subscribers see when they receive an email from you. Make it enticing and personalized to pique their curiosity and encourage them to open the email.

  3. Personalize Your Emails: Use merge tags in Mailchimp to personalize each email with the recipient’s name or other relevant information. Personalization creates a sense of connection between you and your subscribers, increasing engagement.

  4. Keep It Concise: People have limited time and attention spans, so keep your emails short and concise. Get straight to the point while still delivering value.

  5. Provide Valuable Content: Offer useful information, tips, or exclusive promotions that resonate with your audience’s interests or pain points. When subscribers find value in your emails, they are more likely to engage with them.

  6. Use Eye-Catching Visuals: Incorporate images or videos into your emails when appropriate – visual elements can capture attention quickly and make your content more appealing.

  7. Include Clear Call-to-Actions (CTAs): Tell readers exactly what action you want them to take next by including clear CTAs within your emails such as “Shop Now,” “Learn More,” or “Subscribe.” Make sure these buttons stand out visually.

  8. Segment Your Email List: Divide your subscriber list into segments based on demographics, preferences, purchase history, etc., then send targeted campaigns tailored specifically for each segment. This ensures your content is highly relevant to the recipients.

Remember, creating engaging and relevant content requires ongoing experimentation and analyzing your email performance metrics. Continuously monitor open rates, click-through rates, and conversions to determine what resonates best with your audience, and make adjustments accordingly. By consistently delivering valuable content that meets subscribers’ needs, you can improve email deliverability and reduce the chances of ending up in spam folders.

Optimizing Email Design and Formatting

To ensure your Mailchimp emails are delivered to the inbox instead of spam folders, it’s crucial to pay attention to email design and formatting. Here are some tips to optimize your email campaigns:

  1. Keep it Simple: Avoid overwhelming your subscribers with complex designs or excessive content. A clean and minimalistic layout helps improve readability and reduces the chances of triggering spam filters.

  2. Responsive Design: Make sure your emails are mobile-friendly by using a responsive design approach. This ensures that they look great across different devices and screen sizes, increasing engagement rates.

  3. Use Legitimate Sender Information: Provide accurate sender information, including a recognizable name and a valid reply-to address. This builds trust with recipients and improves deliverability.

  4. Avoid Spam Trigger Words: Certain words can trigger spam filters, leading to higher chances of ending up in the spam folder. Be mindful of using terms like “free,” “discount,” or all-caps subject lines that may raise red flags for spam filters.

  5. Include a Clear Call-to-Action (CTA): Encourage recipients to take action by including an easily identifiable CTA button or link within your email content. Use compelling language that entices readers without being overly promotional.

  6. Optimize Images: Optimize images used in your emails by compressing them appropriately without compromising quality or loading times significantly.

  7. Personalization: Utilize personalization tags provided by Mailchimp such as |FNAME| for first names or |DATE| for current date, allowing you to tailor content directly towards individual subscribers.

8.* Test Before Sending: Always test your emails before sending them out on various email clients (e.g., Gmail, Outlook) and devices (desktops, smartphones). This helps identify any rendering issues or formatting errors beforehand.

By following these best practices for optimizing email design and formatting, you can increase the chances of your Mailchimp emails reaching the intended recipients’ inbox rather than being flagged as spam. Remember to regularly monitor email deliverability reports in Mailchimp and adjust your approach if necessary.

Monitoring and Testing Email Campaigns

When it comes to email marketing, monitoring and testing your campaigns is crucial to ensure that your Mailchimp emails don’t end up in the spam folder. Here are some effective strategies to help you improve deliverability rates:

  1. Regularly check your campaign reports: Keep a close eye on the performance of your email campaigns by analyzing various metrics such as open rates, click-through rates (CTR), bounce rates, and unsubscribes. This will give you valuable insights into how well your emails are resonating with subscribers.

  2. Segment your audience: Divide your subscriber list into smaller segments based on demographics, interests, or engagement levels. By tailoring your content specifically to each segment’s preferences, you can increase engagement and reduce the chances of being marked as spam.

  3. Perform A/B testing: Test different elements of your emails such as subject lines, sender names, call-to-action buttons, or even the content itself. Compare the results to identify which variations perform better in terms of open rates and CTRs.

  4. Check for spam triggers: Avoid using excessive capitalization or exclamation marks in subject lines and body text since these can trigger spam filters. Additionally, double-check that you have included all necessary information like an unsubscribe link and a physical mailing address.

  5. Authenticate your domain: Verify ownership of your sending domain through DomainKeys Identified Mail (DKIM) authentication or Sender Policy Framework (SPF). These authentication methods help establish trust with ISPs (Internet Service Providers) by proving that you are a legitimate sender.

  6. Monitor blacklists: Regularly check if any IPs associated with Mailchimp or domains used in links within emails have been blacklisted by major anti-spam organizations like Spamhaus or SURBL. If any issues arise from using specific IPs or domains listed on these blacklists, contact Mailchimp support for assistance.

Remember that achieving high deliverability rates is an ongoing process. Continuously monitor and test your email campaigns to optimize their performance, maintain a healthy sender reputation, and ensure that your valuable content reaches the intended recipients’ inboxes.


In conclusion, if you find that your Mailchimp emails are consistently ending up in the spam folder of your recipients, there are several steps you can take to fix this issue. By following these best practices and implementing the necessary adjustments, you can significantly improve deliverability rates and ensure that your messages reach the intended inbox.

Firstly, it is crucial to maintain a clean email list by regularly removing inactive or bouncing email addresses. This helps to enhance sender reputation and avoid spam filters. Additionally, personalizing your emails with relevant content and making them engaging for readers can increase their chances of bypassing spam folders. Furthermore, it’s important to optimize your subject lines by avoiding trigger words commonly associated with spam emails.

Secondly, authentication plays a vital role in preventing emails from being marked as spam. Implementing SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication Reporting & Conformance) can authenticate your domain and validate the integrity of your messages.

By taking these proactive measures to address potential issues causing mail delivery problems in Mailchimp campaigns, you can boost deliverability rates while ensuring that important messages land safely in subscribers’ primary inboxes rather than getting lost or filtered as spam.

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