If you are using the Skylight app or online Skylight Cloud to send a video, there is not a size limit.
If you are sending videos to Skylight via email, the largest file size accepted is 25MB in one email. If your file is too large, you may receive this message: "552 5.3.4 Message is too long."
*The video feature is available to Skylight Plus subscribers only. If you wish to upgrade to Skylight Plus, please click here.