Overcoming Outlook Attachment Size Limitations: Tips and Tricks

Are you tired of hitting the size limit when trying to attach files in Outlook? Fret not, as there are easy ways to get around this frustrating hurdle. In this article, we’ll guide you through a simple process to overcome Outlook’s attachment size limitations, ensuring your important files get to their destination without a hitch.

Step by Step Tutorial: Overcoming Outlook Attachment Size Limitations

Before we dive into the steps, let’s clarify what we’re trying to achieve. The Outlook attachment size limit can be a real pain, especially when you have large files to send. By following these steps, you’ll learn how to bypass this limit, allowing you to send files of any size through Outlook.

Step 1: Check the size limit

First things first, you should check what the size limit actually is for your Outlook account.

Outlook’s default attachment size limit can differ depending on your email provider or organization’s settings. It’s usually around 20MB to 25MB. You’ll need to know this limit to understand how much you need to compress your files or if you should use an alternative method.

Step 2: Compress the files

If your file is slightly above the limit, try compressing it to reduce its size.

There are various ways to compress files, such as using built-in tools in Windows or Mac, or by using third-party software. Remember, compressing a file can reduce its quality, so it’s not always the best option for files like high-resolution images or videos.

Step 3: Use cloud storage services

For larger files, it’s best to upload them to a cloud storage service and send the link instead.

Services like OneDrive, Dropbox, or Google Drive can be integrated with Outlook. By uploading your large files to these services, you can simply share a link in your email, bypassing the size limit altogether.

Step 4: Split the file

Another option is to split the file into smaller parts and send them in multiple emails.

There are software tools available that can split larger files into smaller, more manageable chunks. This way, you can send each part separately without exceeding the size limit.

Step 5: Use a file transfer service

Lastly, consider using a dedicated file transfer service to send your large files.

Websites like WeTransfer or SendAnywhere allow you to upload and send large files without needing to worry about email size limits. They’re straightforward to use and often free for a certain file size range.

After completing these steps, you should be able to send your file via Outlook without hitting any size restrictions. Whether you’ve compressed the file, used a cloud service, split it, or opted for a file transfer service, your recipient will now be able to access the file you intended to send.

Tips for Overcoming Outlook Attachment Size Limitations

  • Always check the file size before attempting to send it via Outlook.
  • Consider converting files to different formats that may be smaller in size.
  • Regularly clear out your sent items and deleted items to ensure your Outlook account isn’t clogged up.
  • When using cloud storage, make sure you set the appropriate permissions for the recipient to view or download the file.
  • If you’re sending sensitive information, ensure that the method you choose is secure and protects your data.

Frequently Asked Questions

What is the default size limit for Outlook attachments?

The default size limit for Outlook attachments is typically between 20MB and 25MB, but this can vary depending on your email provider or organization’s policies.

Can compressing a file reduce its quality?

Yes, compressing a file, especially media files like images and videos, can reduce its quality. It’s essential to assess whether the quality loss is acceptable for your purposes before choosing to compress.

How do I check the size of my file?

You can check the size of your file by right-clicking on it and selecting ‘Properties’ on Windows or ‘Get Info’ on Mac. The file size will be displayed in the details.

Are file transfer services safe to use?

Most file transfer services use encryption to protect your files during transit. However, it’s essential to use reputable services and check their privacy policies before use.

Can I send an unlimited file size through a cloud storage link in Outlook?

While cloud storage services allow for larger files to be shared, they may have their own limits. Always check your chosen service’s maximum file size before uploading.


  1. Check the size limit of your Outlook account.
  2. Compress files if they are slightly above the limit.
  3. Use cloud storage services to share larger files.
  4. Split the file into smaller parts if necessary.
  5. Use a file transfer service for very large files.


Overcoming Outlook’s attachment size limitations doesn’t have to be a massive headache. With the tips and steps we’ve outlined in this article, you’ll be sending those pesky large files in no time. Whether it’s compressing them, splitting them up, or taking advantage of cloud storage solutions, there is always a way to ensure your important documents and images reach their destination. Remember, always keep an eye on the size limit, choose the best method for your file type, and consider the security of your data when sending sensitive information. So go ahead, don’t let a little limitation stop you from effective communication. After all, in this digital age, sharing large files should be the least of your worries!

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