[Daimyo]

Some additional information:

Curious about the lack of newlines where there ought to be some, I manually tweaked the zmprov.script file (the thing I'm piping to zmprov). It now looks like this:

ma dflynn zimbraMailSieveScript '\
require ["fileinto", "reject", "tag", "flag"];\
\n# Helpdesk Tickets\
\nif anyof (header :contains "subject" "[Lib Help #" )\
\n{\
\n    tag "Tickets";\
\n    flag "flagged";\
\n    stop;\
\n}\
'

When I pipe this file into zmprov, and then run 'zmprov ga dflynn', I get the following for the zimbraMailSieveScript attribute:

zimbraMailSieveScript: require ["fileinto", "reject", "tag", "flag"];
# Helpdesk Tickets
if anyof (header :contains "subject" "[Lib Help #" )
{
    tag "Tickets";
    flag "flagged";
    stop;
}

This looks close to how it should be (judging by the same attribute format on my production Zimbra server, which was created using the filters GUI in the web interface). Unfortunately, I still don't see any filters in the web interface for this account, and I still can't create new ones (I get the error mentioned in my previous post).