mailbox question

[ROGERWILCO357]

ok how do i get rid of my email boxes i have 3 email boxes one gmail,comcast and yahoo i would like to get rid of one . Tried to delete it but it still is there? I want it totally gone no image of it let just gone? thanks inadvance.
newbie

 

[flatfoot]

So I presume you're talking about Apple Mail.
To delete the mali boxes on the left, you have to delete the corresponding accounts in Preferneces --> Accounts.

CAUTION: This deletes the downloaded messages of these mail boxes on your mac, too!