Manual configuration

After reading (and comprehending, to a certain extent) extensively, I cannot grasp how to do this.
I have Outlook. My server is AT&T (@sbcglobal.net). I have another webmail account for business. That is the account where I get thousands of email in trash/spam per week (@webmail1and1). That is where I want Spami to work.
My account is 6.5 years old and all of a sudden, they do not have any history of my SPAM. Currently, all of my mail has been going into spam, and I turned OFF the anti-SPAM four days ago. The filters that I designed are not working either.
Webmail 1and1 is being extremely difficult from a support standpoint, so I decided to act. I downloaded a program yesterday. Working backwards, when I realized that without mail coming into the inbox, it could not filter spam. I could not then create a whitelist, unless copy/paste each address that I move as Not Spam.
Today, I downloaded Spamihilator and realized that I should highlight all the mail in my Inbox and mark it as UNREAD, in order to have "new" mail. Even though it should have been easy, that was not a simple two-step process, either.
After writing this out, I think that the proper setup would be using the incoming server information from (IMAP) webmail1and1. I have to get the password from the business, if I am correct, because it is not my website. Have I figured it correctly?
Thank you.
I have Outlook. My server is AT&T (@sbcglobal.net). I have another webmail account for business. That is the account where I get thousands of email in trash/spam per week (@webmail1and1). That is where I want Spami to work.
My account is 6.5 years old and all of a sudden, they do not have any history of my SPAM. Currently, all of my mail has been going into spam, and I turned OFF the anti-SPAM four days ago. The filters that I designed are not working either.
Webmail 1and1 is being extremely difficult from a support standpoint, so I decided to act. I downloaded a program yesterday. Working backwards, when I realized that without mail coming into the inbox, it could not filter spam. I could not then create a whitelist, unless copy/paste each address that I move as Not Spam.
Today, I downloaded Spamihilator and realized that I should highlight all the mail in my Inbox and mark it as UNREAD, in order to have "new" mail. Even though it should have been easy, that was not a simple two-step process, either.
After writing this out, I think that the proper setup would be using the incoming server information from (IMAP) webmail1and1. I have to get the password from the business, if I am correct, because it is not my website. Have I figured it correctly?
Thank you.