How do you send large video files via email?
Written by Cameron James·September 10, 2026Quick answer
You do not attach it. Email was never built to carry video, and the caps are low: Gmail stops personal accounts at 25 MB, and Microsoft puts Outlook.com at 20 MB with a 10 MB default on business Exchange accounts. Upload the video to cloud storage or a transfer service and send a link instead. Gmail does this for you automatically once you pass your limit. Outlook shows an error and expects you to upload to OneDrive and share the link yourself.
Key facts
- Gmail caps attachments at 25 MB on personal accounts, though Google Workspace limits vary by edition and administrator settings. Pass whichever limit applies to you and Gmail swaps the attachment for a Google Drive link.
- Microsoft states a 20 MB email size limit for Outlook.com and a 10 MB default for business Exchange accounts, and recommends a OneDrive link for anything larger.
- Apple Mail Drop sends attachments up to 5 GB from Apple Mail. It runs through iCloud, so the sender is signed in to an Apple Account, but the recipient needs nothing. Attachments expire after 30 days, against a 1 TB Mail Drop storage limit.
- WeTransfer's free plan allows 10 transfers, or 3 GB in total, in any rolling 30-day window. The recipient does not need an account to download.
- Receiving limits are set separately from sending limits, so a file that leaves your outbox can still bounce off a stricter corporate mail server at the other end.
- Compressing or trimming the video is usually faster than fighting the limit. Cutting a clip to the 90 seconds that matter beats sending 20 minutes nobody watches.
Pick the host based on the recipient
The right choice is usually decided by the person receiving it, not by you. If they are on Gmail or Google Workspace, upload to Drive and share the link, because Gmail will effectively do that for you the moment you cross your own sending limit. If they are a Microsoft shop, OneDrive keeps the file inside a domain their IT team already trusts. If you are on a Mac emailing someone once and never again, Mail Drop handles up to 5 GB with no setup, and nothing at all for the recipient to sign up to. You will need to be signed in to your Apple Account, which on a Mac you already are.
WeTransfer is still the quickest option when the recipient is outside all of that, since they can download without an account. Watch the free plan though: it is 10 transfers or 3 GB across a rolling 30 days, not per send.
Watch the receiving end, not just yours
The limit that bites is rarely the one you can see. Sending caps and receiving caps are set separately, and plenty of corporate mail servers are stricter than the sender's, which is how a file that left your outbox cleanly bounces an hour later.
When I was doing go-to-market work at a data company I lost most of an afternoon to exactly this, resending a demo recording three different ways to a prospect whose mail server was quietly binning anything over a few megabytes. A link would have worked first time. Links do not have a size.
When the video exists to explain a document
There is one version of this problem where the file transfer is the wrong question entirely. If you are sending a video because you recorded yourself walking through a proposal, a deck or a report, then you are about to make the reader open a 2 GB download in one tab and a PDF in another, and hope they line the two up.
That is the gap I built LiveDocument for: the walkthrough sits alongside the PDF or image behind a single link, and you can see which pages held attention. Worth being clear that it is not a file transfer service and never will be, so for raw video, holiday footage or anything that is not a document, use Drive, OneDrive or Mail Drop above and ignore me.
The Bottom Line
Attaching video to email is a fight you lose at 25 MB, so send a link every time. Pick the host based on who is receiving it, not on which service you happen to have open.
Written by Cameron James