Use InnoDB engine

smtp_log.sql

@@ -16,25 +16,25 @@ CREATE TABLE `messages` (
     `deny_code` int(11) default '0',
     `deny_msg` text,
     PRIMARY KEY  (`mail_id`)
-) TYPE=MyISAM; 
+) TYPE=InnoDB; 
 	
 CREATE TABLE `rcpts` (
     `rcpt_id` int(11) NOT NULL auto_increment,
     `mail_id` varchar(255) NOT NULL default '',
     `recipient` varchar(255),
     PRIMARY KEY  (`rcpt_id`)
-) TYPE=MyISAM; 
+) TYPE=InnoDB; 
 	
 CREATE TABLE `message_body` (
     `bdy_id` int(11) NOT NULL auto_increment,
     `mail_id` varchar(255) NOT NULL default '',
     `body` text,
     PRIMARY KEY  (`bdy_id`)
-) TYPE=MyISAM; 
+) TYPE=InnoDB; 
 
 CREATE TABLE `message_headers` (
     `header_id` int(11) NOT NULL auto_increment,
     `mail_id` varchar(255) NOT NULL default '',
     `header` text,
     PRIMARY KEY  (`header_id`)
-) TYPE=MyISAM;
+) TYPE=InnoDB;