Inbox-->Menu Button-->Options-->Email Settings-->Confirm Delivery "No"
For your Phone Calls:
Call Log-->Menu Button-->Options-->Call Logging-->Change "All Calls" to "None"
P.S. If you update your profile to include your phone model, it will help us any time you're asking questions. Sometimes the different phone models have a slightly different solution. I assumed you had a Pearl since you posted in here, but just in case you post elsewhere on the stack. Welcome to the Stacks!
If I knew where I was going, I might already be there. -- Cross Canadian Ragweed.