How to Send Music Production Files via Email

The session is done and the producer needs to deliver stems, or the composer is sending a Logic Pro project to a mixing engineer across town. A single 24-bit, 48kHz stereo WAV stem is 150MB for a five-minute track. A full Logic Pro project folder — sessions, samples, reverb tails, and plugin bounces — can easily be 500MB zipped. Even a modest Ableton Live Set with collected samples runs well over Gmail's 25MB limit.

SendSplit accepts your music project file or stem ZIP, splits it into numbered parts, and delivers each as a standard email attachment — up to 200MB, no account needed by the recipient. The engineer downloads all parts, extracts once, and opens the session exactly as you left it — all audio files in place, no relinking required.

Why music production files hit email limits

Audio files are some of the heaviest per-minute media:

  • Uncompressed stems (WAV/AIFF): a 24-bit/96kHz stereo WAV runs about 34MB per minute; a full song with 20 stems at that quality is roughly 1.5GB — even individual stems push past 25MB
  • Logic Pro projects (.logicx): the project package bundles the session file, audio recordings, and bounces; anything beyond a simple demo is 200MB+
  • Ableton Live Sets with samples: "Collect All and Save" packs external samples into the project folder; typical projects reach 50–300MB
  • Pro Tools sessions (.ptx): together with the Audio Files folder a session archive is often hundreds of megabytes
  • MIDI + VSTi renders: bouncing instrument tracks to audio for delivery produces multiple large WAVs that balloon the package size

How to send music production files via email using SendSplit

  1. Zip your project folder or stem bundle, then go to sendsplit.com/upload-to-send and upload the ZIP (up to 200MB)
  2. Choose a part size: 20–25MB is fine for most personal studio inboxes; use 10MB if the recipient is at a label or broadcaster with strict IT filtering
  3. Enter the engineer's or client's email address and click Send

On the recipient's side:

  1. Receives a series of emails, each with a numbered ZIP part (e.g., TrackName_Stems_v2.zip.001)
  2. Downloads all parts into the same folder
  3. Opens the first part (.001) with 7-Zip, WinRAR, macOS Archive Utility, or Windows Explorer — all parts reassemble into the original ZIP, which they extract
  4. Opens the project or stems in their DAW — audio files found, no relinking needed

Packaging music files for email delivery

How you package the project affects whether the recipient can open it cleanly:

  • Bounce consolidated audio: instead of sending a Logic project with live plugin chains, bounce each track to a clean WAV stem; this makes the session DAW-independent and avoids "missing plugin" errors on the recipient's end
  • Use Collect All and Save in Ableton: this command copies all external samples into the project folder so the session is self-contained when you ZIP it
  • Include a track sheet: add a text file to the ZIP listing tempo, key, sample rate, and a brief description of each stem file — especially important if the recipient is editing or remixing
  • Name stems systematically: Song_Lead_Vocal.wav, Song_Drums_Kick.wav, Song_Bass.wav avoids ambiguity; Stem1.wav causes confusion when the engineer has five projects open
  • Flatten MIDI to audio before delivery: if the recipient doesn't have the same VST instruments, they can't play back MIDI tracks; render everything to WAV unless they specifically need MIDI

Sending stems vs. full sessions

  • For mixing: deliver individual WAV stems at the original sample rate and bit depth — the mixer needs maximum headroom and no pre-baked processing
  • For mastering: deliver a single stereo mix-down WAV, not stems; keep it at 24-bit and the session sample rate (44.1 or 48kHz)
  • For remixes: deliver stems grouped logically (Drums, Bass, Harmony, Lead, Vocals) rather than individual channel strips
  • For collaboration: send the full project archive so the collaborator can continue in the same session — use "Collect All and Save" to bundle dependencies

Stop relying on temporary Dropbox links or telling clients to "check their spam folder." Use SendSplit to deliver stems and session files as real email attachments — WAV, AIFF, Logic Pro, Ableton, Pro Tools — up to 200MB, straight to the inbox. Free signup only.