How to Send Large Files Over Email — 5 Methods That Actually Work

The error message appears: "Attachment exceeds the maximum allowed size." Gmail caps you at 25MB. Outlook at 20MB. Your file is 60MB. Now what?

This scenario happens to millions of people every day. It's one of the most common digital frustrations in the workplace. And yet, most people only know one solution (if that). Here are five approaches, ranked from simplest to most involved.

Method 1: Compress the File (2 Minutes)

Before you try anything else, see if you can shrink the file below the email limit.

For images and PDFs: Compress them. A 60MB PDF with high-resolution images can often be compressed to under 15MB without visible quality loss. Images can be resized and recompressed dramatically.

For multiple files: ZIP them. A folder of text documents (Word, Excel, CSV) can compress by 70-90%. A ZIP of 30MB of documents might end up as 8MB.

For a single large file: If it's a video or already-compressed format, compression won't help much. Move to Method 2.

Tools: ZipDownloader.com offers both file compression and ZIP creation — no sign-up needed.

Method 2: Use Cloud Storage Links (3 Minutes)

This is the modern standard and what most professionals should default to for files over 10MB.

Advantages:

Disadvantages:

Pro tip: Gmail automatically offers to upload large attachments to Google Drive and include a link instead. If you see this prompt, accept it — it's the smoothest workflow.

Method 3: Split Into Multiple Emails (5 Minutes)

Not elegant, but effective in a pinch. If your file is 40MB and the email limit is 25MB:

For ZIP files, you can create split archives — multiple ZIP files that combine to recreate the original. Most ZIP tools support this feature.

Method 4: Use a File Transfer Service (3 Minutes)

Services like WeTransfer, Send Anywhere, and Firefox Send are designed specifically for sending large files. The workflow is simple:

These services typically allow files up to 2GB for free. The files are stored temporarily (usually 7 days) and then automatically deleted.

Best for: One-time sends to people outside your organization, especially when cloud storage sharing isn't appropriate.

Method 5: Physical Media (Varies)

It sounds antiquated, but sometimes the fastest way to transfer 500GB of data is to put it on a USB drive and hand it over. As the saying goes: "Never underestimate the bandwidth of a station wagon full of hard drives."

Best for: Extremely large datasets (hundreds of gigabytes), situations where internet upload speeds are too slow, or when security requirements prohibit cloud services.

Which Method Should You Use?

Email Attachment Limits by Provider

For reference, here are the current attachment limits for major email providers:

Remember: these are per-email limits. If you attach three 8MB files, you're already at 24MB — dangerously close to the Gmail limit.

The Best Long-Term Solution

If you regularly deal with large files, set up a shared cloud folder with your frequent collaborators. Drop files there, and everyone has instant access. No compression, no email limits, no download links. It's the professional way to handle file sharing in 2026.