all email address should be auto add to address book
email we received or sent that email address should directly add to address book as contact and we should be able to import same address book in excel format
Brian Siegle commented
Please allow Outlook to use android device address book(s) regardless of sending account. Don't need a sync, just use the addresses already there.
Interventional Radiology commented
I cannot find email addresses I used before unless it is typed in the address line
Shanmugam_ G commented
outgoing email id to be added to the address book, automatically.