Why Gmail Blocks Emails & How to Fix It?

Did you know that even real marketing emails can get blocked or sent to the spam folder of Gmail? In fact, data shows about 6.8% of emails sent to Gmail end up as spam. So, only about 87% actually reach the inbox.

This means a big chunk of your audience might never see your emails. This is bad for business owners, marketers, and IT teams. Gmail’s filters are strict. They check your reputation, email authentication , content, and how people engage before deciding if your email should go to the inbox. Do you want to know why Gmail blocked my email?

Here we will explain why Gmail blocks emails and share a simple 5-step plan to help you improve your email deliverability.

You need to know if the problem is happening before trying to fix Gmail email blocking. Here are some signs Gmail might be blocking or filtering your emails.

1.Bounce Messages

When an email bounces back, check the error codes. Gmail might show messages like Message blocked for policy reasons when it refuses your email.

If you see bounces often, it could mean there is a problem with the reputation or settings of your domain . Look at the bounced email details to see if Gmail or another server rejected it.

2.Emails Going to Spam

Send test emails to Gmail addresses and see where they land. If many go to Spam that means Gmail spam filter is filtering your emails.

Ask some subscribers to check their Spam folder and mark your emails as not spam to help you improve email delivery.

Keep an eye on how often your emails end up in Spam. If it happens a lot, it is a clear sign of deliverability problems.

Use Google Postmaster Tools

Google Postmaster Tools is a free service where you can check the reputation of your domain, spam complaint rates, and encryption setup. Watch for spikes in your Spam Rate or Email Delivery Errors. These can mean Gmail is blocking or filtering your emails.

Use this info to track trends over time because even small drops in reputation or increases in complaints can make Gmail send your emails to Spam.

By watching for these signs, you can spot problems early and take steps to avoid Gmail spam folder.

Knowing why Gmail blocks emails helps you fix the right issues. Here are the most common reasons.

Poor Sender Reputation

Gmail watches how your domain and IP behave. Your reputation can suffer if you have lots of spam complaints, frequent bounced emails, or send emails in unpredictable ways.

Sending a lot of emails from a new or unknown domain can make Gmail suspicious. This is true even if your authentication is good. This can cause your emails to be filtered or delayed.

Missing or Wrong Authentication

Gmail may not trust your emails if your SPF, DKIM, or DMARC records are missing or set up incorrectly.

For example, if SPF does not match properly, your emails can look fake to Gmail. Your domain is more open to spoofing without a strong DMARC policy. This is making Gmail to treat your emails with caution.

Spammy Content

Using too many salesy words like FREE or URGENT, writing in all caps, or adding lots of exclamation marks can raise red flags.

Having too many images, lots of suspicious links, broken links, or messy HTML can also hurt your email’s chances. Big attachments or files that are too large can cause problems too.

Low Engagement from Recipients

Gmail notices if people often ignore, delete, or archive your emails without opening them. If your recipients rarely click or reply, Gmail may think your emails are not useful.

Over time, low engagement lowers your sender reputation and increases the chance your emails will end up in spam.

Here are a few steps that you can take to improve your email delivery rate.

• 1

  Set Up Email Authentication

  Make sure you have SPF, DKIM, and DMARC set up correctly. Gmail strongly recommends using all three to prove your emails are real and safe. Use tools like Google Admin Toolbox or MXToolbox to check that your records are correct.
  Keep an eye on these settings and update them whenever you add new email services or change your setup.
• 2

  Watch and Improve Your Sender Reputation

  Check if your IP or domain is on any blacklists like Spamhaus. Being blacklisted hurts your email delivery.
  Try to keep your spam complaints below 0.1% and your bounce rate under 2% to stay in good graces of Gmail. Use Google Postmaster Tools or feedback reports to track how people react to your emails and spot any problems early.
• 3

  Make Your Email Content Better

  Avoid spammy tricks like writing in ALL CAPS. Using too many exclamation points, or misleading subject lines is not right. Keep a good balance of about 80% text and 20% images. So, your emails look natural and easy to read.
  Write clear, helpful messages with a simple call-to-action. Don’t make your whole email sound like a hard sell.
• 4

  Warm Up New Domains or IPs

  When you start sending from a new domain or IP, begin by sending 50 to 100 emails a day. Send these to your most active and interested users. Slowly increase your email volume over 4 to 6 weeks while watching how people engage and if you get any spam complaints.
  This helps Gmail see you as a trusted sender instead of flagging you as suspicious.
• 5

  Test Your Emails Before Sending

  Use Gmail’s Show Original feature to check the technical details of your email. These include authentication and headers.
  Try spam testing tools like GlockApps or Mail-Tester to see how filters of Gmail view your emails. Fix any problems you find like broken links, missing authentication, or too many images before sending to your whole list.

Here are some common errors that cause Gmail to block or filter your emails and how to avoid them.

• Avoid buying email lists. These often have fake or inactive addresses, leading to many bounces and complaints that hurt your reputation.
• Not fixing issues like bounces and complaints: or removing unhappy recipients lets your reputation slip.
• Using no-reply email addresses lowers engagement. This is because people can’t reply which Gmail notices.
• Not keeping your list fresh can cause spam traps and low engagement.
• Big changes in subject lines, email design, or sending volume can make Gmail suspicious.
• If you don’t watch opens, clicks, and complaints, you won’t know when your emails start performing poorly.

Gmail often blocks or filters emails. This is not because you are trying to do anything wrong. This happens because of issues with your sender reputation, email authentication, or the content of your messages.

You should take a careful approach by following this guide to improve your chances of landing in the inbox. If you are still having trouble, it is a good idea to get help from email deliverability Gmail experts. You can now get a free inbox placement audit to find out exactly what needs fixing.