Just upgraded from 1.8.1 to 1.8.3 this night and now to 1.9.0 and now email piping is not working anymore.This is the error from my exim log:Child process of virtual_address_pipe transport returned 127 (could mean unable to exec or command does not exist) (could mean unable to exec or command does not exist) from command: /home/mydomain/domains/mydomain.nl/public_html/support/api/pipe.phpHowever, the pipe.php does exist there.Had the same problem on version 1.8.1 and could fix it by doing chmod 755 pipe.php (which should not be necessary!!!). So this was not fixed in 1.8.1However, at this moment it's 755 and cron.php is too but still getting this error.php version 5.3.28, mysql 5.5.37 and Apache 2.2.27 on Centos 6.5 x64.