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Can’t Attach Files in Gmail? Apply These Quick Fixes

Being one of the oldest and most popular email service providers around the globe, Gmail offers several benefits to its users. It allows you to maintain access, send or receive almost every kind of mail anytime and from anywhere. But sometimes Gmail comes up with various bugs and errors, which may cause problems while working on its application or your account. One of the common errors that many users have experienced is “Can’t attach files in Gmail”, i.e., you will be unable to attach files in Gmail.

In this error, you will not be allowed to attach or add any kind of file to your compose mail feature. It is important to apply quick fixes to resolve the issue otherwise you won’t attach files to your emails. Here, in this article, we have mentioned common causes and proper methods that you can try to fix Gmail won’t attach files issue. 

Why Can’t I Attach Files in Gmail?

Before you apply any method to fix the attachment failed issue in Gmail, it is important to know what causes the error. Usually, the error arises because of a firewall or proxy server. However, some other factors why you cannot attach files in the Gmail app or account are given below:

  • If you’re sending an executable file, Gmail might block it due to security measures for preventing the spread of viruses.
  • In a few cases, it is seen that the issue is with the user’s browser. One of your browser extensions might be limiting the functionality of Gmail.
  • Another reason why you may fail while attaching files in Gmail is that your browser does not support adequate email service. If there is any browser-related issue, we suggest you opt for supported browsers like Edge, Chrome, Safari, and Firefox.

Now, when you are familiar with the exact cause of the Gmail cannot attach files error, it’s time to fix the issue. Once you are ready to fix attachment failed issues on Gmail, go with the following methods.

Effective Methods to Fix Gmail Won’t Attach Files Error

Just apply the following methods one by one to fix the attachment failure issue on your Gmail account:

Method 01: Disable Your Firewall

As already explained, your firewall may be the main reason why you are unable to attach files in Gmail Android or iOS apps. So, in such cases, we recommend you turn it off temporarily. For this:

  • Firstly, press Windows + R keys on your keyboard to launch the Run dialogue box.
  • Now, type “firewall.cpl” (without quotes) in the Run dialogue box, and press OK Button or Enter key.
  • Go to the left-pane menu, then tap the “Turn Windows Defender Firewall on or off” link.
  • Choose the ‘Turn off Windows Defender Firewall’ option located under the Domain, Private, and Public Network Settings.
  • After selecting the right option, click OK and close the window.

Have you installed any third-party antivirus programs in your system? If so, we suggest you turn them off temporarily. After successfully sending your email, turn your antivirus back on immediately.

Method 02: Turn Off Your Proxy Server

Another important reason why you can’t attach files in Gmail is the presence of a proxy server. If you have enabled any proxy server on your device, disable it to check if it resolves the issue. You can disable the proxy server by following the below-mentioned steps:

  • Press Windows +S Key to open the search bar.
  • Type “internet options” and then select Internet Options from the results that appear on screen.
  • Switch to the Connections tab and tap the “LAN Settings” button.
  • Now, from the Local Area Network (LAN) Settings window that appears on the screen, deselect the ‘Use proxy server for your LAN’ option.
  • At last, click OK on the LAN Settings window, and then click the Apply and OK button on the Internet Properties window.

Method 3: Always Check the Limits for File Attachments

Gmail has a major disadvantage in that it allows you to send files only within a certain file size limit. You can only send files within the size of 25 MB. In case, the size of your file is beyond the range, it recommends you upload the file firstly to Google Drive. Then you can add the link to that to your message.

Method 04: Clear Your Browser Cache and Cookies

If there is any problem with your browser, then you can clear its cache and cookies to troubleshoot the issue. If you are using the Google Chrome browser, you can apply the following steps to clean the cache and cookies:

  • Firstly, open the Google Chrome browser, and click the Ctrl+H keys to open a new tab for your browsing history.
  • Navigate to the left-pane menu, then click Clear Browsing Data.
  • Now, select All Time from the drop-down list for Time Range.
  • Check both the boxes adjacent to ‘Cookies and other site data’ and ‘Cached images and files options.
  • At last, click Clear Data.


Hope, the above-mentioned methods help you to fix the Gmail attachment issues. However, if you are still unable to download attachments from Gmail, you can contact their technical support team. The Gmail support experts are always available to troubleshoot Gmail issues, including the attachment error.

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