openssl s_client -connect domainhostseotool.com:995
user admin@domainhostseotool.com
pass yourpassword
stat
(show total messages and size of the messages)
list
(show each message on a new line, including message number and the size of the message)
retr messagenumber
(retrieve the content of a message by its message number)
dele messagenumber
(delete a message)
rset
(reset the session)
top messagenumber lines
(retrieve top lines of a message)
capa
(list the capabilities)
uidl
(list each message with its message number and unique identifier )
quit
Note that all pop3 commands have 4 characters.