> check_recipient_access mysql:/etc/postfix/mysql_whitelist_recipient.cf
> ...
> "Dec 2 13:51:09 mail4 postfix/smtpd[21777]: warning: connect to mysql
> server 127.0.0.1: Too many connections
try
http://www.postfix.org/proxymap.8.htmlcheck_recipient_access proxy:mysql:/etc/postfix/mysql_whitelist_recipient.cf
proxy_read_maps = ... proxy:mysql:/etc/postfix/mysql_whitelist_recipient.cf
Best regards
Gerald