How to attach a folder to an email

Sometimes one file isn’t enough. Whether you’re sending a project folder, a batch of photos, or work documents, email clients don’t allow attaching entire folders directly. But there are simple ways to do it safely and efficiently.

You can attach a folder to an email in just a few steps using Gmail, Outlook, Yahoo, or your computer’s native mail app. You’ll also see what to do when a folder is too large to send, plus how to keep your files secure when sharing them online.

How to attach a folder to an email (Windows and Mac)

Before attaching a folder, you need to compress it into a ZIP file. This turns your folder into one convenient file, making it easier to upload and send, since zipping a folder reduces its total size, which helps it upload faster and keeps your attachments organized:

1. Locate the folder you want to send.
2. Right-click the folder and select “Compress” (Mac) or “Send to → Compressed (zipped) folder” (Windows).
3. A new .zip file will appear in the same location.
4. Open your email client and click the paperclip icon to attach a file.
5. Select the zipped folder and click Open.

File size limits for attaching a folder to an email

Most email providers limit the size of attachments you can send:

• Gmail: Up to 25 MB
• Outlook: Up to 20 MB
• Yahoo Mail: Up to 25 MB

If your zipped folder is larger than these limits, you can send it through a cloud storage service such as Google Drive, OneDrive, or Dropbox. These platforms are designed for larger file transfers and automatically create shareable links for your recipients. Uploading your folder before you compose your email also helps prevent delays or failed sends, especially if you’re working with a slow connection.

Related read: How to send a video through email

How to attach a folder to an email without zipping it

If your folder is too large to zip or you prefer not to compress it, you can share it through a cloud service instead:

1. Upload your folder to a cloud platform like Google Drive, OneDrive, Dropbox, or iCloud.
2. Right-click the folder and select Share or Copy link.
3. Adjust permissions so the recipient can view or download the folder.
4. Paste the link into your email.

How to attach a folder to an email in Gmail

Gmail supports both zipped attachments and Drive links for folders. Both options make it easy to share multiple files in one go without overwhelming your inbox. Whether you are sending reports, design assets, or family photos, Gmail automatically detects large files and helps you choose the most reliable delivery method.

1. Compress your folder.
2. Open Gmail and click Compose.
3. Click the paperclip icon and choose your zipped folder.
4. Gmail will upload it automatically.
5. Click Send once the upload completes.

If the upload takes longer than expected, you can keep working in other tabs. Gmail continues uploading in the background until your message is ready to send.

Related read: How to attach an email in Gmail

Alternative method: Using Google Drive

If your folder exceeds 25 MB, Gmail will prompt you to share it through Google Drive. This option is faster for larger files and ensures your recipients can access the latest version, even if you update it after sending.

1. Upload your folder to Drive.
2. In your email, click the Drive icon.
3. Select your folder.
4. Choose Insert as Drive link.

You can manage permissions to allow View, Comment, or Edit access. Google Drive offers 15 GB of free storage, which is ideal for sending large or recurring folders. For ongoing projects, Drive links also keep your files organized in one shared location, reducing the need for repeated attachments or version tracking.

How to attach a folder to an email in Outlook

Outlook lets you attach zipped folders or link directly from OneDrive for larger files. Both options keep your email professional and organized while ensuring your attachments reach the recipient securely. Outlook automatically checks attachment sizes and suggests OneDrive if a file exceeds the limit, so you never need to worry about failed sends.

1. Zip your folder.
2. Open Outlook and click New Email.
3. Click Attach File → Browse This PC.
4. Select your zipped folder and click Insert.

You’ll see your attachment appear below the subject line. Double-check the file name before sending to make sure the correct folder is attached.

Related read: How to attach an email in Outlook

If your file is too large to attach in Outlook:

1. Upload your folder to OneDrive.
2. In your message, select Attach File → Browse Web Locations → OneDrive.
3. Choose your folder and click Share as a OneDrive link.

This method lets recipients download or collaborate directly through OneDrive, which integrates smoothly with Outlook’s security features. It also reduces inbox storage use and allows real-time collaboration without multiple versions of the same file. Microsoft recommends this option for shared work files because it keeps everything updated and accessible in one secure place.

How to attach a folder to an email in Yahoo Mail

Yahoo Mail follows the same process as Gmail or Outlook when sending zipped folders.

1. Zip your folder.
2. Open Yahoo Mail and click Compose.
3. Click the paperclip icon → Attach files from computer.
4. Choose your zipped folder and click Open.

If Yahoo warns that your file is too large, upload it to Dropbox, OneDrive, or Google Drive and share the link instead. Yahoo integrates with Dropbox, allowing you to attach files directly from the cloud without leaving your inbox.

How to attach a folder to an email on mobile

Smartphones make it easy to compress and send folders directly from your phone. The process is quick and requires no third-party apps, which makes it ideal for sharing work files or photos on the go. Most smartphones also give you access to cloud storage, so you can switch to a shared link if your folder is too large to attach.

On iPhone (Mail or Gmail app)

1. Open the Files app and locate your folder.
2. Tap and hold the folder, then select Compress.
3. Open Mail or Gmail and tap Compose.
4. Tap the paperclip or file icon → Browse → select your zipped folder.

You can also upload the folder to iCloud Drive or Google Drive and share the link directly from your phone. If you’re using iOS 15 or later, the Files app integrates with cloud storage by default, so you can manage and send larger folders without leaving your email.

On Android

1. Open your file manager and find the folder you want to send.
2. Tap and hold the folder, then choose Compress.
3. In your email app, tap Attach → Files → select the zipped folder.

Many Android file managers, including Google Files, automatically compress folders when you choose “Send as ZIP.” You can also use built-in sharing tools to send folders via Google Drive or other connected apps, giving you flexibility to manage files directly from your device.

When to use Cloud links instead of attachments

Sometimes attaching a folder directly is not practical. Cloud sharing is the better choice when:

• Your folder is larger than 25 MB
• You need to update files after sending
• You want to share access with several people
• You are collaborating on a project over time

Using a cloud link keeps your files in one location and ensures everyone is working from the same version. It also saves email storage space and prevents your messages from bouncing back due to large attachments. Cloud services like Google Drive, OneDrive, and Dropbox make it easy to control permissions, track activity, and revoke access when a project is complete.

Related read: How to attach a photo to an email

Best cloud options for sharing folders

• Google Drive: Best for Gmail users, offers 15 GB of free storage, and integrates seamlessly with Gmail.
• OneDrive: Ideal for Outlook users, offers 5 GB of free storage, and supports real-time collaboration.
• Dropbox: Good for cross-platform users, includes 2 GB of free storage, and links easily to any email provider.
• iCloud Drive: Works well for Apple users, includes 5 GB of free storage, and connects to Mail on Mac and iPhone.

To share a folder safely, open it in your chosen cloud service, click Share or Get link, and select “Anyone with the link can view.” Then copy and paste that link into your email.

Cloud storage is more reliable than large attachments and avoids the risk of failed uploads. It also allows recipients to preview or download files without installing extra software. According to Statista, 71% of internet users rely on cloud storage, showing that this has become the standard way to share folders securely.

Tips for sending folders efficiently

A few small habits make file sharing faster and smoother. These simple steps help you avoid common mistakes, save time, and keep your work organized. Developing a clear process for naming, checking, and storing your files also makes it easier for your colleagues or clients to find what they need without confusion.

• Label folders clearly, using descriptive names like “Q3_Reports_2025.zip.” Consistent naming conventions help you locate files later and ensure your recipient immediately knows what they are receiving.
• Check file size before uploading. Large files can slow down or fail during transfer, especially on slower networks. Splitting or compressing files in advance prevents delays and failed uploads.
• Verify sharing permissions when using cloud links. Make sure the right people have access, and check that viewing or editing rights match the purpose of your email.
• Use clear subject lines such as “Client Photos – Zipped Folder.” A descriptive subject line makes it easier for recipients to locate your message later.
• Keep a backup of any folders you send, stored either locally or in the cloud. This ensures you have a copy if the recipient loses access or requests the files again in the future.

Attaching folders to email becomes straightforward once you know the method. Compress smaller folders before sending and use cloud links for larger ones. Each approach saves time and ensures your files reach the right people quickly.

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Attaching folders to email FAQs

Can I attach an unzipped folder to an email?

No. Email platforms do not support sending entire folders. You must compress the folder first or use a cloud link. Compressing keeps your files in one place and reduces upload time, making it easier for both you and your recipient to manage the contents.

Why can’t I upload my zipped folder?

Your folder might exceed the size limit or your internet connection may be unstable. Upload it to Google Drive, OneDrive, or Dropbox and share a link instead. Check your internet speed or file size before retrying, as large attachments can sometimes time out during the upload process.

How do I attach multiple folders?

Create a new main folder, move the smaller folders into it, compress the main folder, and attach that single ZIP file. This approach keeps your files organized and avoids sending multiple attachments that can clutter your recipient’s inbox.

Can I email a folder directly from Google Drive?

Yes. Open Drive, right-click the folder, select Get link, and paste it into your email. You can adjust permissions so the recipient can view, comment on, or edit the files, depending on what kind of access you want to allow.

What if my recipient cannot open a zipped folder?

They may need to unzip it using built-in tools or free apps such as WinZip for Windows or The Unarchiver for Mac. It can also help to remind them to download the file fully before attempting to open it, as incomplete downloads can cause errors.

Is cloud sharing secure?

Yes, when managed correctly. Both Google Drive and OneDrive encrypt data in transit and at rest. Always double-check sharing permissions to prevent unwanted access. For sensitive information, choose “restricted” access and share only with specific email addresses rather than public links.