"strings -a" still shows password: BDB0073 DB_NOTFOUND

saslpasswd2[9455]: error deleting entry from sasldb: BDB0073 
DB_NOTFOUND: No matching key/data pair found

I get the same error message regardless of whether I am creating or 
deleting a user, but after a deletion, sasldblistusers2 shows the user 
gone, but strings -a sasldb2 | grep 5678 still shows the password in 
there (in the clear, obivously.)

I don't mind a bogus error message but leaving the password behind is 
not OK.

A previous mail said "take care for the domain" -- is there a command to 
find the domain?

I have tried removing bubba or bubba@beerhall, either way the user is 
gone and the passwd remains. I also tried saslpasswd2 -d -u beerhall 
bubba, same result, user is gone, passwd remains.

Thanks in advance for any help.