"Attachment size exceeds the allowable limit." Gmail stops you at 25 MB, Outlook at 20 MB — and even then, large attachments clog inboxes, get clipped by corporate filters, and sit unencrypted on mail servers indefinitely. Email was never designed to move files. Here's what to use instead.
Why email fails at file transfer
An email attachment is copied to your mail server, the recipient's mail server, and every device that syncs either mailbox. That's a lot of copies of your file living in places you can't see — and it's why providers cap sizes so aggressively. Even "small" files like a photo album or a slide deck blow past 25 MB easily.
The link-based approach
Instead of attaching the file, you send a link. The question is what's behind that link:
Cloud storage links (Drive, Dropbox) upload your file to the provider first. Fine for casual files, but you're using up your quota and leaving a copy on their servers.
Peer-to-peer links skip storage completely. With ZetaShare, the link you paste into your email, Slack, or WhatsApp opens a direct, encrypted connection between your browser and your recipient's. The file streams across live — no upload, no quota, no size limit.
Sending a file without email in three steps
- Open ZetaShare — no account needed.
- Drag your file in and copy the link (add a password if it's sensitive).
- Send the link any way you like: chat, SMS, or yes, even a one-line email.
The transfer starts when your recipient opens the link, and everything is encrypted with DTLS 1.3 end to end.
When each method wins
Use a cloud link when the recipient will download at some unknown later time. Use P2P when you want speed, privacy, and zero limits — a 40 GB video project transfers just as easily as a PDF, and when the transfer is done, no copy exists anywhere except the recipient's device.
Stop fighting attachment limits. Send your file by link — free and unlimited.