Why email won't send your large file, and what actually works
Email has a size limit — usually between 20 and 25 megabytes per message, depending on your provider. A video file, a folder of photos, or a software installer will almost always exceed that. When you try to send it, your email either bounces back with an error or sits in your outbox indefinitely, never reaching the recipient.
The simplest solution is to use a file transfer service instead of email. These are websites or apps designed specifically to move large files. You upload the file once, the service gives you a link, and you send that link to whoever needs it. The recipient downloads directly from the service, not from your email. This works for files of any size — gigabytes, even — and takes the same amount of time whether the file is 100 megabytes or 5 gigabytes.
You have three main routes: free services that work for one-time transfers, cloud storage you might already have, or paid services if you send large files regularly. Which one makes sense depends on how often you do this and whether you need the file to stay accessible afterward.
Key Takeaways
- Email has a size limit around 20 to 25 megabytes, so files larger than that will not send no matter how long you wait.
- Free file transfer services like WeTransfer or Google Drive let you upload once and share a link instead of attaching the file to email.
- If you already use Google Drive, OneDrive, or iCloud, you can upload the file there and share the folder link — no new account needed.
- The recipient downloads the file from the service's website or app, not from your email, so the transfer happens outside your email account's limits.
Using a free file transfer service for one-time sends
WeTransfer is the most straightforward option if you send large files rarely. Go to wetransfer.com, click the "Add your files" button, and select the file from your computer. You can add multiple files at once as long as the total stays under 2 gigabytes. Enter your email address and the recipient's email address, add a message if you want, and click "Transfer".
WeTransfer emails the recipient a link they can click to read. The link works for 7 days, then the file is deleted from WeTransfer's servers. You do not need an account — the free version works without signing up. If you need the link to last longer than a week, you can pay for a premium account, but for most one-time sends, the free version is enough.
Google Drive works similarly and has the advantage that you may already have a Google account. Go to drive.google.com, click the "New" button on the left, select "File upload", and choose your file. Once it uploads, right-click the file and select "Share". You can then copy a link and send it to the recipient, or type their email address directly and Google will notify them. The file stays in your Drive indefinitely unless you delete it, so this works well if you need the recipient to access it weeks or months later.
Uploading to cloud storage you already use
If you already have OneDrive (Microsoft), iCloud (Apple), or Dropbox, you can use those instead of signing up for something new. The process is nearly identical to Google Drive: upload the file to your account, share a link, and send that link to the recipient.
The main difference is that OneDrive and iCloud have smaller free storage limits than Google Drive — usually 5 gigabytes for OneDrive and 5 gigabytes for iCloud — so if you are sending files regularly, you may run out of space faster. Dropbox gives 2 gigabytes free. Google Drive gives 15 gigabytes. If you are close to your limit, check your storage before uploading.
The advantage of using what you already have is that you do not need to remember another password or service. The disadvantage is that the file takes up space in your account, so if you send large files often, you will fill up your storage and have to pay for more.
What to do if the recipient cannot read the file
The most common problem is that the recipient's email system blocks the link or marks it as spam. This happens more often with work email accounts, which have stricter security rules. If the recipient says they did not get the email with the link, ask them to check their spam or junk folder first.
If the link is there but they cannot click it, or if they get an error when they try to read, the file may have been deleted. WeTransfer files expire after 7 days, and some services delete files if they are not downloaded within a certain time. Ask the recipient when they received the link, and if it has been more than a week, upload the file again and send a new link.
If the recipient is on a work network, their IT department may block downloads from certain services. In that case, ask them what services their network allows, or ask your IT department if you are sending from work. Some organizations only allow downloads from specific approved services.
Compressing a file to make it smaller
If you want to keep using email, you can sometimes make a file small enough to send by compressing it — a process that removes redundant data and shrinks the file size. This works best for folders containing many documents or images. A folder of 50 photos might compress from 500 megabytes down to 300 megabytes, which could fit under your email limit.
On Windows, right-click the file or folder, select "Send to", and click "Compressed (zipped) folder". Windows creates a new file with a .zip extension that is smaller than the original. On Mac, right-click and select "Compress". The compressed file is what you attach to email.
Compression does not always help enough. A video file compressed is still usually too large. But for documents, spreadsheets, and photos, it can reduce the size by 30 to 50 percent. If the compressed file is still too big, you will need to use a file transfer service instead.
Splitting a large file into smaller pieces
Some email providers let you send files up to 50 megabytes if you use their desktop app instead of the website. Gmail's desktop app, Outlook's desktop app, and Apple Mail all have higher limits than their web versions. If your file is between 25 and 50 megabytes, try using the desktop version of your email program instead of opening email in your browser.
If that does not work, you can split a large file into smaller pieces using free software, send each piece separately, and have the recipient combine them on their end. This is tedious and error-prone, so it should be your last resort. A file transfer service is almost always faster and simpler.
When to pay for a file transfer service
If you send large files multiple times a week — for example, if you are a photographer, video editor, or work in construction and send site photos regularly — paying for a service makes sense. WeTransfer Pro costs about $12 per month and removes the 7-day expiration, lets you customize the read page with your branding, and gives you password protection. Tresorit and Sync.com are encrypted alternatives that cost $8 to $15 per month and are better if you are sending confidential information.
For most people, the free options are enough. You only need to pay if you are doing this constantly or if you have specific security needs — for example, if you are sending medical records or financial documents and want encryption.
Frequently Asked Questions
Can the recipient re-read the file after the link expires?
No. Once a file transfer service deletes the file, the link no longer works. If the recipient needs the file again, you have to upload it a second time and send a new link. This is why cloud storage like Google Drive is better if the file needs to stay accessible long-term — you control when it is deleted, not the service.
Is it safe to use free file transfer services?
Free services like WeTransfer and Google Drive are safe for most files. They use encryption while the file is in transit and on their servers. If you are sending sensitive information like passwords, tax returns, or medical records, use an encrypted service like Tresorit or ask your organization what they recommend. Never put truly confidential information on a free service without checking first.
What if I need to send a file to someone who does not have email?
Most file transfer services let you set a password on the read link, so you can share it by text message, phone call, or in person. WeTransfer and Google Drive both support this. The recipient clicks the link, enters the password, and downloads the file — they do not need an email account.
Why does my file keep failing to upload?
The most common reasons are a slow internet connection, a file that is corrupted, or a browser that crashed mid-upload. Try uploading again, and if it fails a second time, try a different browser or a different device. If the file itself is corrupted, you may need to re-create it or restore it from a backup.
Can I send a file transfer link to multiple people at once?
Yes. Most services let you enter multiple email addresses when you create the link, or you can copy the link and send it to as many people as you want. The file is the same for everyone — they all read from the same link. If you want different people to see different files, you have to upload and share each file separately.