我煦着http://www.debianhowto.de/de/qmail_MTA/c_qmail_MTA.html的方法安裝qmail, 不過到dpkg -i courier-imap-ssl_1.4.3-3.1_i386.deb \
courier-imap_1.4.3-2.3_i386.deb courier-ssl_0.37.3-3.1_i386.deb courier-authdaemon_0.37.3-2.3_i386.deb \
courier-base_0.37.3-2.3_i386.deb courier-webadmin_0.37.3-2.3_i386.deb的時候, system話/usr/bin/addrc正被ucspi-tcp使用中, 請幫幫我, 謝謝大家~