How can I change the status from pending to sent on a patron messaging queue ?

You need to run periodically a script named process_message_queue.pl Here is its documentation: This script processes the message queue in the message_queue database table. It sends out the messages in that queue and marks them appropriately to indicate success or failure. It is recommended that you run this regularly from cron, especially if you are using the advance_notices.pl script. This script has the following parameters : -u --username: username of mail account -p --password: password of mail account -m --method: authentication method required by SMTP server (See perldoc Sendmail.pm for supported authentication ty pes.) -h --help: this message -v --verbose: provides verbose output to STDOUT -- Frédéric DEMIANS http://www.tamil.fr/u/fdemians.html