## Appendix A Gacopyz ¶

> Gacopyz, panie, to mówią ze to mysa... Ze to tako mysa co świeckę w kościele zjadła i wniebowstąpienia dostąpiła. A to nie je mysa, ino gacopyz! To nadprzyrodzłyne, to głową na dół śpi!

> Kazimierz Grześkowiak

‘`Gacopyz`’ is the client library implementing Milter protocol. It differs considerably from the Sendmail implementation and offers a new and more flexible API. The old API is supported for compatibility with `libmilter`.

The library name comes from the song ‘`Rozprawa o robokach`’ by Kazimierz Grzeskowiak. The phrase ‘`A to nie je mysa, ino gacopyz`’ exactly describes what the library is: ‘`That is no libmilter, but gacopyz`’.

Future versions of this documentation will include a detailed description of the library.