help with odd account


New Email
hi,i want to have a email account that [1]-lets me and 1 other person log into the same account,using same name of account and same password.[2]-does not keep wanting verification everytime i/we log in from different location,and/or cpu-tabet there anything out there that can help me?.also,IF possible,an account thats lets it look like i sent an email at an odd hour[ie-middle of the night]sounds odd i know.somewhere i read about something called boomerang!!!. regards-eddie