Uploading Files to Drive

There are no hard file size limits in TrekMail Drive — you can upload anything from a 12 KB receipt to a 200 GB video, as long as you have enough space in your pool. The mechanics are the same in Account Drive (dashboard) and Webmail Drive (per-mailbox), so this guide applies to both.

How to upload

There are two ways to upload, and you can pick either.

The upload button. Click the Upload button in the toolbar. Your operating system's file picker opens. Pick one or many files, click Open, and the upload starts immediately. The button is always in the same place at the top of the file list.

Drag and drop. Drag files from your desktop or another folder window into the file list area. A drop overlay appears as soon as you start dragging, telling you exactly where the files will land. Release the mouse button and the upload starts.

Both methods upload to the folder you're currently viewing. If you want files in a specific folder, navigate there first.

What you see during an upload

A progress bar appears at the bottom of the screen showing each file in flight. For each one you'll see:

• The filename
• A percentage and bytes-uploaded indicator
• A cancel button (×)

You can keep working in Drive while uploads run. Move files, create folders, even start more uploads — they queue up and run in parallel. Closing the browser tab cancels in-flight uploads, but files that have already finished stay safely on the server.

How large files upload

For smaller files, TrekMail uploads them in a single request — the browser sends the whole file at once and the server confirms it landed.

For larger files, TrekMail switches to chunked upload automatically. The file is split into pieces that upload in parallel. This matters because:

• Resilience. If the network drops mid-chunk, only that chunk needs to be retried — not the whole file.
• Speed. Multiple chunks travel at once.
• Browser memory. The browser doesn't have to hold the whole file in memory at once.

You don't need to do anything differently. TrekMail picks the right method automatically.

If your network is unstable and you want to nudge a stalled upload, the page has a Refresh button next to upload rows that look stuck. It reissues fresh upload URLs for the remaining chunks without losing progress on the ones that have already uploaded.

File names and same-name handling

Names follow the same rules as folders. Slashes (/) and backslashes (\) are not allowed. Anything else — spaces, accents, emoji — is fine.

If a file with the same exact name already exists in the same folder, the new upload becomes filename (2).ext. Both copies are kept. This is on purpose — Drive doesn't silently overwrite. To replace a file, delete or rename the old version first.

Upload limits and quotas

Two kinds of limits apply during upload:

Storage pool. Before TrekMail accepts the upload, it checks whether your pool has space. If you're at the cap, the upload is rejected with a clear "not enough space" error and zero bytes are written. See Pooled Storage Quotas Explained for what counts.

There is no hard cap on individual file size. A 200 GB upload to a Pro account with a 5 TB Drive Add-on works fine — it just takes a while.

Supported file types

Drive accepts any file type. There's no MIME-type filter, no extension blacklist. You can upload .exe, .zip, .psd, .dwg, .sql, .mov, .iso — anything.

The one caveat: when you generate a public download link for a file, browsers and operating systems still apply their own download warnings to executables. That's outside TrekMail's control.

Common upload problems

"Not enough space." Your pool is full or this upload would push it over. Free up space (Trash, large attachments, big Drive files), buy the Drive Add-on, or upgrade your plan.

Upload stalls at 0%. Usually a network problem on your end. Refresh the page and try again. Slow connections can take several minutes to show progress — the upload is running, just not visibly yet.

Upload restarts from 0%. If you closed the tab or navigated away, the upload was cancelled. The next attempt is a fresh upload. Don't navigate away during a large upload.

File appears with (2) suffix. A file with the same name was already there. Delete the old one if it's outdated, or rename the new one.

Some chunks failed. Click the Refresh button next to the upload row. TrekMail re-issues URLs for the missing chunks and retries them.

Best practices

• Keep your pool above 80%. Trying to upload a 50 GB file to an account that's 95% full is going to fail. Run a tidy-up sweep of Trash and old attachments before a large upload.
• Upload during a stable network window. Big files over a coffee-shop wifi connection will fight you. Plug into ethernet for serious transfers.
• Use folders before uploading, not after. Create the destination folder first, navigate into it, then upload. Cleaning up afterwards by moving 200 files is doable but slow.
• For very small files, batch into a ZIP. A handful of 10 KB receipts uploaded as one ZIP is faster than 50 individual uploads.

What's next

• Creating and Organizing Folders — get your destination folders set up first.
• Sharing Files via Public Links — once a file is up, send it to someone outside the company.
• Sending Large Attachments via Drive — auto-routing for messages with attachments larger than 18 MB.
• Drive FAQ & Troubleshooting — error messages decoded.