Searchformat Option
From MsgServerDocWiki
A printf-style format string with which to construct Users/Groups LDAP queries for the user's mailhost when hosteddomains is disabled. Valid escape sequences are:
%s (userid+virtualdomain) %U (userid only) %V (virtual domain only) %C (client IP address) %S (server IP address) %D (client cert subject DN) %o (original user as passed from client)
The default value is: uid=%s

