LibMAIL is partially based
on libraries used in implementing the Courier
mail server. As such, the library contains both C and C++
code; although the published API consists of C++ objects only.
LibMAIL uses C++ objects
declared in the mail
namespace.
Applications that use LibMAIL
should refrain from declaring any objects in the mail
namespace. At this time, applications
should also refrain from declaring any C functions whose name
begin with the following prefixes (these prefixes are reserved
at this time):