Not sure if this is what you want but have a look,
in outlook2003 click on Tools, then click on options then click on email options, then click on tracking options, there you will find options to not send any receipts.
Qualcomm Snapdragon 835 benchmarks: Antutu, Geekbench 4, GFXBench and PCMark results
1995-2015: How technology has changed the world in 20 years
This animated short film tells a moving story of domestic violence for Refuge
New iPad 2017 preview: Apple's affordable but underspecced new iPad may appeal to the education…
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.