Sendmail account setup

[Jay Kelly]

Hello All,
I have a question on Sendmail. I would like to give out email accounts but
do not want to give them a debian account. All I want them to have access to
is email. Can this be done? Now when I add a new email account I have to use
"adduser" which creates a home directory. What are ISP's using?
Thanks in advance for your help and time