This program is for taking the information about letters from a mail server using POP3 protocol.
The program uses port 110 for usual connection and 995 for ssl.
The program requires following arguments:
address - POP3 mail server IP-address port - mail server port login - user login password - user password
-s, --start - the start index of letters range. Default value is 1 -e, --end - the last index of letters range
If the last index has not been set program supposes it (s + 1) where s is the start index.
For each of loaded letters program saves the information.
To show a help message use -h or --help argument.