You cannot email a file larger than 25 megabytes using an iPhone, which can make it difficult to send large or long videos.
You can work around these file size limits to send a large video using the iPhone's Mail Drop feature, which sends content via iCloud, or by using a third-party platform like Google Drive.
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Well, if it's larger than 25 megabytes, which most videos of any substance are, then you can forget about sending it via email.
And good luck sending a video that's longer than about three and a half minutes via iMessage or text, either: you're almost sure to get a "Message Not Delivered" notification there.
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