You can store your FTP password and PO3 connector in encrypted mode?
I guess that this kind of password is not encrypted under the hood because written directly into the configuration files. What we can improve here is hide it with points or asterisks @giacomo so people can't read it using the webinterface. It should be pointed out that accessing by ssh and knowing the right configuration file you can read it anyway
FTP and POP3 need passwords saved in clear text.
We can hide it from the web interface, but IMO is much more useful to have it clear text also in the web interface in case you need to pass it to other users.