Replex

Any NULL in the virtual table will
cause postfix failed to look up
further aliases.

This is the maillog for the problem:
postfix/cleanup[11272]: warning: end of input while
receiving integer data from service un
known_stream

The modified replex.sql should be something like:

# -------------------
#
# Table structure for table 'virtual'
#

CREATE TABLE virtual (
alias varchar(255) NOT NULL,
dest longtext DEFAULT '' NOT NULL,
username varchar(30) NOT NULL,
status int(11) DEFAULT '1' NOT NULL,
PRIMARY KEY (alias)
);