I used LMTP command like RCTP to: "uid+folder@domain".
The deliver is succeeded when I use the folder name without any whitespace inside.
RCTP to:<test+test@test.com">
But I get "500 5.5.2 Syntax error in recipient address" when I use the folder(test test) contains whitespace.
RCTP to:<test+test test@test.com">
Please help.