I just installed webmin and usermin-webmail, webmin works perfectly but usermin-webmail failed. I am able to log into usermin the I get the following error:
**Error - Perl execution failed
Can't use an undefined value as a symbol reference at /usr/libexec/usermin/mailbox/folders-lib.pl line 1983, line 1.
looks like I get the error only when I tried to access mail portion of usermin, Also, Change password doesn't work. I get old password is incorrect even through it correct.