nc -vn IP 143
# login
a LOGIN USER PASS
>> a OK LOGIN Ok.
# list all mailboxes
a LIST "" "*"
# see inside mailbox
a EXAMINE "<inbox-name>"
a SELECT "<inbox-name>"
# if EXISTS, we can FETCH
a FETCH <mail-number> BODY.PEEK[]
a FETCH <mail-number> BODY[]
evolution
# sudo apt install evolution
File > New > Mail Account
# set up and view mail