# Drag and Drop (DT to Mail) Fails in Golden Gate

**URL:** <https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738>\
**Category:** Feedback\
**Tags:** bug-report\
**Created:** [September 30, 2026, 6:13pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738 "2026-09-30T18:13:30Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![lloyd094](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/l/41988e/32.png) [@lloyd094](https://discourse.devontechnologies.com/u/lloyd094)\
**Post date:** [September 30, 2026, 6:13pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/1 "2026-09-30T18:13:30Z")

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Currently on MacOS 27.0 and DT4.4.1.

Since upgrading to MacOS 27, dragging and dropping files from DT to Mail no longer works. It appears to, but they always result in 0b files once sent. When trying to open before sending, I get the following message from Apple Mail:

“Error - Mail was unable to save the attachment “[Attachment Name]” to disk. Verify that your downloads folder exists and is writable.”

I believe this is a bug on DT4’s end caused by a change in MacOS 27. Files dragged first to another folder (like downloads) from DT4 and THEN to Mail work fine. It’s just when dragging directly from DT4 to Mail when it fails.

Side note: no failures or issues seem to show in the log view, unless I have a setting wrong that hides it.

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [September 30, 2026, 6:29pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/2 "2026-09-30T18:29:53Z")

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What kind of files do you drag? And where do you drop them (e.g. onto the Dock icon)?

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**Author:** ![lloyd094](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/l/41988e/32.png) [@lloyd094](https://discourse.devontechnologies.com/u/lloyd094)\
**Post date:** [September 30, 2026, 6:51pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/3 "2026-09-30T18:51:56Z")

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Usually PDFs, and rarely DOCX, and I drag them directly into the Mail draft window. Prior they have always attached properly.

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [September 30, 2026, 7:32pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/4 "2026-09-30T19:32:36Z")

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I couldn’t reproduce the issue, I dragged Zip archives, PDFs and DOCX files into a draft window. But I’m using a beta of 27.2. Does it work after rebooting or after enabling full disk access for Apple Mail?

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**Author:** ![lloyd094](https://discourse.devontechnologies.com/letter_avatar_proxy/v4/letter/l/41988e/32.png) [@lloyd094](https://discourse.devontechnologies.com/u/lloyd094)\
**Post date:** [September 30, 2026, 10:07pm UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/5 "2026-09-30T22:07:51Z")

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Interesting - enabling that full disk access for Apple Mail did the trick. Not sure what changed, but glad to have this working again. Hopefully this thread helps others who have the same issue, and thank you for the help!

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [October 1, 2026, 1:58am UTC](https://discourse.devontechnologies.com/t/drag-and-drop-dt-to-mail-fails-in-golden-gate/87738/6 "2026-10-01T01:58:26Z")

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See _Getting Started \> First and Last Steps \> macOS Permissions_ in the built-in Help and [manual](https://www.devontechnologies.com/support/download/extras).