Update README

README

@@ -11,25 +11,24 @@ any point, tell Sendmail to reject, discard, or accept the message.
 Requirements
 ------------
 
-This python milter extension: http://www.bmsi.com/python/milter.html
+Python milter extension: http://https://pypi.python.org/pypi/pymilter/
 Python: http://www.python.org
 Sendmail: http://www.sendmail.org
+
 NB: From Sendmail's libmilter/README:
 
 libmilter requires pthread support in the operating system.  Moreover, it
 requires that the library functions it uses are thread safe; which is true
 for the operating systems libmilter has been developed and tested on.  On
 some operating systems this requires special compile time options (e.g.,
-not just -pthread).  libmilter is currently known to work on (modulo
+not just -pthread).  libmilter is currently known to work on (modulo problems
-problems in the pthread support of some specific versions):
+in the pthread support of some specific versions):
 
 FreeBSD 3.x, 4.x
 SunOS 5.x (x >= 5)
 AIX 4.3.x
 HP UX 11.x
 Linux (recent versions/distributions)
-OpenBSD
-AIX 4.1.5
 
 libmilter is currently not supported on:
 
@@ -110,28 +109,6 @@ _FFR_MILTER for the cf macros.  For example,
 
 m4 -D_FFR_MILTER ../m4/cf.m4 myconfig.mc > myconfig.cf
 
-
-RedHat 6.2 Notes
-----------------
-
-The Redhat 6.2 sendmail RPM does not enable milter.  You can obtain a
-modified spec file at
-
-http://www.bmsi.com/linux/rh62/sendmail-rhmilter.spec
-
-use it to rebuild the Redhat 7.2 SRPM.  The RH6.2 SRPM does not have
-recent sendmail security patches.
-
-RedHat 7.2 Notes
-----------------
-
-The Redhat 7.2 sendmail RPM enables milter in sendmail - but does not include
-the headers needed for compiling a milter.  You can obtain a modified spec
-file with a sendmail-devel package that includes the needed static libraries
-and headers at
-
-http://www.bmsi.com/linux/sendmail-rh72.spec
-
 IPv6 Notes
 ----------