bmac89
macrumors 65816
Hello,
When sharing photos and videos from the photos app to mail the full size files are attached with original names.
However when attaching the same photos or videos directly from mail app it changes the names and file sizes (compressed) and sometimes the file type is also changed.
* Videos taken with camera app are always sent as MOV files.
* Screen recordings are sent as mp4 if shared, however they will be converted to MOV if attached directly in mail app.
* Screen Recordings will not open in QuickTime on Mac if sent via mail drop but work if sent directly without mail drop.
Examples:
* Share via photos app =
img_564.MOV
ScreenRecording_09-07-2017 17:09.MP4
IMG_2945.JPG
* Attach via mail always =
video.MOV
image1.jpeg
When I send screen recordings via mail drop the files will not open on my Mac running El Capitan. However if I send the files individually to reduce the file size and send directly without mail drop the files open in QuickTime on the Mac. Normal videos are not an issue with mail drop.
It shows a blank file icon and the error message shown in the screenshot below. However the files still open in VLC.

When sharing photos and videos from the photos app to mail the full size files are attached with original names.
However when attaching the same photos or videos directly from mail app it changes the names and file sizes (compressed) and sometimes the file type is also changed.
* Videos taken with camera app are always sent as MOV files.
* Screen recordings are sent as mp4 if shared, however they will be converted to MOV if attached directly in mail app.
* Screen Recordings will not open in QuickTime on Mac if sent via mail drop but work if sent directly without mail drop.
Examples:
* Share via photos app =
img_564.MOV
ScreenRecording_09-07-2017 17:09.MP4
IMG_2945.JPG
* Attach via mail always =
video.MOV
image1.jpeg
When I send screen recordings via mail drop the files will not open on my Mac running El Capitan. However if I send the files individually to reduce the file size and send directly without mail drop the files open in QuickTime on the Mac. Normal videos are not an issue with mail drop.
It shows a blank file icon and the error message shown in the screenshot below. However the files still open in VLC.

