Email log in issues!!!!

my wife and i keep having to reset our log in password almost every day. We dont notice until we are waiting on an important email to come across and keep checking our phones only to find out  when we check on the web that we are getting the reset your password due to a security review. this happens WAY to often and is becoming a major issue. i am about to leave comcast as this is becoming an issue in the day to day running of my business! also when the email finally decides to come thru after changing passwords (again) it seem to be almost nothing but Spam!