Attachment size limits are where your email dreams meet reality. Use 📩📉 when your file's too big to send, or 📧⚠️ to warn about limits in a work chat. When you’re archiving instead of sending, 📬🗄️ fits right in. For those failed uploads, try 📤📋❌ to show rejection clearly. These combos fit tech support DMs, office threads, and any time your gigabyte dreams hit a wall.