Guides

Sending a file that is too large for email

Email was not built for big files. A link that expires usually works better.

Why the attachment bounces

Mail providers cap the size of a message. Gmail, for example, limits attachments to 25 MB, and many other providers set limits in the same range. The cap applies on both sides: a message your provider accepts can still be rejected by the recipient's. Attachments also grow by roughly a third when they are encoded for sending, so a file slightly under the limit can still fail.

Send a link instead

1. Upload the file. One file up to 500 MB; no account is needed.
2. Choose how long the link lasts: one download, 24 hours or 7 days.
3. Paste the link into your email or chat message. Optionally, enter your own address when uploading and we email the link to you once.

Sending several files

You can choose several files at once. We pack them into a single zip archive, so one link covers them all. A folder works the same way once it is compressed into one zip file.

Things to keep in mind

• Anyone who has the link can download the file while the link is valid. Send it only to the people who should have it.
• Files are stored on our server and are not end-to-end encrypted. For sensitive material, encrypt the file yourself (for example a password-protected archive) before uploading, and send the password separately.
• When the link expires or reaches its download limit, the file is deleted. Keep your own copy.

See also: When to use a one-time download link and the FAQ.