How to Send Large Files on Outlook (Past the Attachment Limit)
Outlook is built for email, not for moving big files, so it cuts attachments off at a low limit. Try to send a video or a large document and it gets rejected before it leaves your outbox. The clean fix is to share a link instead of attaching the file. Here is how to do it for free, with no account, so your large file always arrives.
What is Outlook's attachment size limit?
Outlook.com caps attachments at around 20MB, and many company mailboxes running Exchange or Microsoft 365 set the limit even lower, often 10 to 25MB depending on the admin. On top of that, the receiver's mail server has its own cap, so even a file that leaves your outbox can bounce on the way in.
When a file is too large, Outlook either blocks it or pushes you toward a OneDrive link. OneDrive works inside Microsoft accounts, but it pulls the recipient into sign-in and sharing permissions, and large files use up your OneDrive storage.
The fix: share a link instead of attaching
The dependable way past Outlook's limit is to stop attaching the file. Upload it once to a file host, copy the shareable link, and paste that link into your Outlook message. There is no heavy attachment to reject, so the email sends straight away and the recipient just clicks the link.
It keeps quality intact too. Mail servers often recompress media and strip large files. A link points at your original upload, so the recipient gets the exact file at full quality.
Step by step with SAVEDLY
First, open SAVEDLY and drop your file or video onto the upload box. There is no account and no size limit, so files well past Outlook's cap go through. Second, copy the link once the upload finishes. Third, compose your email in Outlook and paste the link into the body.
Videos and images preview inline when the recipient opens the link, so they can view straight away without downloading. For a private file, set an optional password before sharing so only the intended people can open it.
Outlook link vs OneDrive vs a file host
OneDrive is convenient if everyone is inside Microsoft 365, but it asks the recipient to handle permissions and a sign-in, and large files draw down your OneDrive storage. A dedicated file host avoids all of that: no account on either side, no permission settings, and no storage quota.
For a one-time send, a no-account link is the least friction. If the file matters long term, keep your own master copy, because link hosts are made for active sharing rather than permanent storage.
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Upload a file freeFrequently asked questions
What is the attachment size limit in Outlook?
Outlook.com caps attachments at around 20MB, and company Exchange or Microsoft 365 mailboxes are often lower. The recipient's mail server also has its own limit, so large attachments frequently bounce.
How do I send a file larger than 20MB on Outlook?
Do not attach it. Upload the file to a host like SAVEDLY, copy the link, and paste the link into your Outlook email. It sends instantly and the recipient opens the file from the link with no size limit.
How can I send a large video through Outlook?
Upload the video to SAVEDLY, which has no size limit and no account, then paste the link into your message. The recipient watches it inline at full quality instead of dealing with a rejected attachment.
Is sending large files on Outlook free?
Yes. SAVEDLY is free with no account and no size cap, so you can email a link to any large file at no cost. Files with no traffic for 7 days are removed, so keep your own copy of anything you need long term.
Why does Outlook reject my attachment?
Outlook blocks attachments over its size limit, and the receiving mail server may block them too. Sharing a link instead of attaching the file avoids both limits, because the email only carries a small URL.