As the title says, is it possible for admin to disable user from enter reply-to address in Preferences -> Mail -> Accounts ? Because it seems that whenever our user user's account got hack, the hacker will enable this feature to redirect the replies to their email account. Please give some advise...

Thank you.

Zimbra : Release 7.2.0_GA_2669.RHEL5_64_20120410001942 CentOS5_64 FOSS edition.