Try quoting the repository name too:

/usr/local/bin/svnnotify  --repos-path "/data/svn/testRepository" --revision "11" --subject-cx --subject-prefix "testRepository - " --with-diff --handler HTML::ColorDiff --to "you@yourdomain.com" --from "you@yourdomain.com" --reply-to "you@yourdomain.com"

The only other change I see is that you were attaching the diff. Also check out line 2309 in /usr/perl5/site_perl/5.8.4/SVN/Notify.pm, it looks like it's searching for a file that isn't found.

I'm trying to get this set up for a group of developers. Unfortunately I seem to be missing something. The emails go out, but there is almost nothing in the content. The author field isn't populated, the diff doesn't show, etc. I tried changing the –with-diff flag to -attach-diff but that didn't really make any difference. I mean, the diff is still empty, only now it's attached.

This is on Solaris 10.

It appears that Subversion is passing the correct variables, as I echoed them out to a temp file during one of the commits and here are REPOS, REV and REPOS_NAME:

/data/svn/testRepository
11
testRepository

Executing the raw command from the command line yielded this:

# /usr/perl5/5.8.4/bin/svnnotify –repos-path /data/svn/testRepository –revision 11 –subject-cx –subject-prefix "testRepository - " –attach-diff –handler HTML::ColorDiff –to red@act.ed –from "Subversion" –reply-to "Subversion"
Use of uninitialized value in exec at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Can't exec "": No such file or directory at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Cannot exec : No such file or directory
Child process exited: 512
Use of uninitialized value in exec at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Can't exec "": No such file or directory at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Cannot exec : No such file or directory
Child process exited: 512
Use of uninitialized value in exec at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Can't exec "": No such file or directory at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Cannot exec : No such file or directory
Use of uninitialized value in substitution (s///) at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 1239.
Use of uninitialized value in substitution (s///) at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 1240.
Child process exited: 512
Use of uninitialized value in index at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 1309.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 1310.
Use of uninitialized value in substitution (s///) at (eval 6) line 1.
Use of uninitialized value in print at /usr/perl5/site_perl/5.8.4/SVN/Notify/HTML.pm line 323.
Use of uninitialized value in print at /usr/perl5/site_perl/5.8.4/SVN/Notify/HTML.pm line 323.
Use of uninitialized value in substitution (s///) at (eval 6) line 1.
Use of uninitialized value in print at /usr/perl5/site_perl/5.8.4/SVN/Notify/HTML.pm line 326.
Use of uninitialized value in print at /usr/perl5/site_perl/5.8.4/SVN/Notify/HTML.pm line 326.
Use of uninitialized value in exec at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Can't exec "": No such file or directory at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 2309.
Cannot exec : No such file or directory
Use of uninitialized value in concatenation (.) or string at /usr/perl5/site_perl/5.8.4/SVN/Notify.pm line 1697.
Child process exited: 512

Any ideas?