How to Send a Large Video Through Email

What is the largest video you can send via email?

Your mail provider sets the limit, not the video. Google's overview for this search cites Dropbox and fast.io and gives these attachment caps:

Provider	Attachment cap	Source of the figure
Gmail	25 MB	Google search overview citing dropbox.com and fast.io. The 25 MB figure also appears in the r/GMail thread and on lucidlink.com
Outlook	20 MB	Google search overview citing dropbox.com and fast.io
iCloud Mail	20 MB	Google search overview citing dropbox.com and fast.io

You can't actually use the whole cap. Email was built to carry text, so MIME, the standard that lets messages carry attachments, encodes binary files as Base64 text. That encoding makes the file noticeably bigger in transit than it is on your disk. So a video that sits just under the cap on your computer can go over it once it's encoded. The receiving server has its own limit as well, and it can reject a message your own provider accepted. When that happens you get a bounce and the recipient sees nothing.

How do I email a video that is too big?

Send a link, not the file. The video stays on a file-sharing service and the email carries only a short URL. A URL is tiny, so the attachment cap never comes into play.

1. 1 Look up the real file size in Finder or File Explorer. The clip's length doesn't tell you the size.
2. 2 Upload the file to a file-sharing service. Dropbox, for example, says Dropbox Transfer takes uploads of up to 250 GB (dropbox.com, November 2024).
3. 3 Set access. Google's overview describes the Google Drive steps: right-click the file, set sharing to "Anyone with the link", then copy the link. If the file stays restricted, anyone outside your organisation lands on a request-access page.
4. 4 Paste the link into the email body. Add one line saying what the video covers and how long it runs, so the recipient knows what they're clicking.
5. 5 Before you send, open the link in a private browser window. If you're asked to log in, your recipient will be too.

Gmail lets you skip the separate upload. As Google's overview describes, you click the Drive icon in the compose window and Gmail inserts the video as a link. Our guide on how to send a video in an email covers which video formats to use and why videos rarely play inside the inbox.

Which file-sharing service should I use for a large video?

The services that come up in the search results for this query all work the same way. You upload the file, you get a link, and the recipient clicks it to watch or download. Where they differ is where the file is stored and who needs an account. The table only gives size figures that this article's sources actually state.

Service	How the video reaches the recipient	Size figure in the sources	Suits	Where it stops
Google Drive	Shared link, or inserted from Gmail's compose window	15 GB free storage (Google search overview)	Gmail and Google Workspace users	Outsiders can only open the link if sharing is set to "Anyone with the link"
Dropbox Transfer	Link sent by email or copied	Up to 250 GB per transfer (dropbox.com, November 2024)	Very large single files and full-quality video	The sender needs a Dropbox account
OneDrive	Shared link	None given in the sources	Microsoft account and Outlook users	Access is set per file, as with Drive
WeTransfer	Download link	None given in the sources	One-off sends to people outside your organisation	It's a transfer link, not a lasting home for the file
iCloud Mail Drop	Link created by the Mail app on iPhone (YouTube walkthrough in the results)	None given in the sources	Sending from an iPhone	Only works through Apple's Mail app

They all share one limit. If the link is open, anyone who receives a forwarded copy of the email can watch the video. Also, a corporate security gateway that scans URLs may open the link before any person does. So a "viewed" notice doesn't prove a human watched it.

How do I compress a video to send via email?

To compress a video, you re-encode it at a lower bitrate, a lower resolution, or both. File size is roughly bitrate multiplied by duration, so halving the bitrate roughly halves the file. A lower resolution means fewer pixels in every frame, so the encoder needs much less data. You can use the export settings in your editing app or a desktop encoder such as HandBrake. Choose MP4 as the output format, because most players and devices open it.

Some methods barely help. Zipping is one. Mailchimp lists it as an option, but MP4 video is already compressed, so the ZIP archive usually ends up only slightly smaller than the original. Cutting the bitrate too far to get a long clip under the cap also backfires: on-screen text blurs and motion turns blocky. If the compressed file looks bad, send a link instead.

Can I send a 3 minute video through email?

That depends on the file size, not the running time. A short screen recording at low resolution can stay under Gmail's 25 MB cap, which is the figure Google's search overview gives. The same three minutes filmed on a phone at full resolution usually won't. Check the size in your file manager and leave room for Base64 encoding, which makes the file bigger in transit. If the encoded size will be close to your provider's cap or over it, compress the file or upload it and send a link. With a link, the recipient's server never has to accept a large message at all.

What changes when the video goes into cold outreach?

Sending a file to a colleague isn't the same job as sending a video to a prospect who's never heard of you. The receiving server has no history with you, and the person may not open anything. The four sections below cover the questions readers of this site ask most often once the video is ready.

Cold email deliverability with video links

The receiving server decides whether a cold email reaches the inbox, not the sender. It checks whether SPF, DKIM and DMARC align with your From domain. It also looks at your domain and IP reputation, your bounces and complaints, and the content, links included. Corporate gateways tend to hold or strip a large attachment from a sender with no history. A single link to a well-known file host keeps the message lighter, but the link still counts as content. Our article on what decides cold email deliverability goes through each signal, and the SPF, DKIM and DMARC checker tests your DNS records. EU consent rules come on top of that. In Germany, for example, the Act against Unfair Competition (UWG) requires prior consent for advertising email.

Sales follow up email template for a video you sent

A follow-up to a video should sum up the video in one sentence, so the point lands even if nobody clicks. Template: "Hi {first name}, last week I sent a short video on {topic}. The short version: {one-sentence takeaway}. If that's relevant for {company}, could we find time for a short call on {day}? If not, a quick 'no' is fine." Send it as a reply in the same thread, not as a new message. Our sales follow up email template collection has more versions for different situations.

Follow up email after no response

Before you write a follow-up, check that the first email arrived. A bounce, or a link that asks for a login, is a likelier reason for silence than a lack of interest. Then reply in the original thread. A real reply carries the In-Reply-To header, which lets the recipient's mail client group it with your first message. Typing "Re:" into the subject of a new email doesn't do that. Keep the follow-up to a few lines with one question. For ready-made wording, see our follow up email after no response templates.

How to follow up on an email with no response

1. 1 Check for a bounce or an auto-reply. If the address is dead, remove it before you send anything else.
2. 2 Open your video link in a private browser window and make sure it still loads without a login.
3. 3 Reply in the existing thread, so the In-Reply-To header ties the messages together.
4. 4 State the video's main point in one sentence and ask one question.
5. 5 Decide in advance when you'll stop. If your last planned follow-up gets no answer, end the sequence.

How EmailFlow OS sends one video to a whole prospect list

This section covers EmailFlow OS, a EmailFlow OS product built for this situation. You record one video and upload it to EmailFlow OS, connect your Brevo account and your sending domain, and import your prospect list into EmailFlow OS. EmailFlow OS then makes a separate personalised version of that one recording for each recipient: one per person, not one per company. Each version is sent from your own inbox, through your own Brevo account and your own sending domain, never from a shared platform sender. That means the SPF, DKIM and DMARC records involved are your domain's and stay under your control. You also don't have to set sharing permissions on a file link for each prospect. Inbox placement is still up to the receiving server. Our article on a personalized video message per recipient explains how the per-recipient version works, and the EmailFlow OS home page describes the service.

Questions people ask

? Is it safe to share a video with "Anyone with the link"?

"Anyone with the link" is an access setting, not a security check. Anyone who has the URL can open the file, including people your recipient forwards the email to. For a sales video that's meant to be watched, that's fine. For anything confidential, limit the file to named accounts instead. Recipients outside your organisation will then have to sign in or request access.

? Will a large video play inside the email?

Usually not. Most mail clients don't play video inside the message. The recipient clicks a link or thumbnail and the video opens in a browser or player. That's why the usual format is a hosted link with a still image and a one-line description. It also keeps the message small. An attachment can push it past the 20 to 25 MB caps that Google's search overview gives for Gmail, Outlook and iCloud.

? How do I send a large video from an iPhone?

Use Mail Drop. A YouTube walkthrough in the search results for this query shows it in the iPhone Mail app: when an attachment is too large, Mail offers to upload it and send a download link. On Android, the same walkthrough uses a Google Drive link. In both cases the email carries a URL rather than the file, so Gmail's 25 MB attachment cap doesn't apply.