loongson/pypi: links for mailprocessing

loongson/mirror mailprocessing-1.2.7.tar.gz
loongson/mirror mailprocessing-1.2.6.tar.gz
loongson/mirror mailprocessing-1.2.5.tar.gz
loongson/mirror mailprocessing-1.2.4.tar.gz
loongson/mirror mailprocessing-1.2.3.tar.gz
loongson/mirror mailprocessing-1.2.2.tar.gz
loongson/mirror mailprocessing-1.2.1.tar.gz