Convert IMAP Folder names to readable text (UTF-7 to UTF-8)

echo "&BB0ENQQ2BDUEOwQwBEIENQQ7BEwEPQQwBE8- &BD8EPgRHBEIEMA-" | tr "&" "+" | iconv -f UTF7 -t UTF-8 

How to block all incoming frames from particular mac-address on Cisco 2960 switches.

There is only one useful command I've found:

mac address-table static HHHH.HHHH.HHHH vlan 1 drop

Was taken here.