I am relatively new to QRZ.com and just started logging QSOs. Right now I have 428 confirmed out of 1073 QSOs in QRZ.com. In other words, 645 are unconfirmed. What conditions are required to be "confirmed." Do I have to manually confirm each one of the unconfirmed QSOs? Why 40% of my QSOs have been automatically confirmed while 60% have been left confirmed. Thank you in advance for your help.