[Koha] problem sending email using nullmailer with Koha 3.2 on UBUNTU 10.10 and gmail as smtp.

nullmailer is configued as follows mail name of your system: koha smarthosts: smtp.gmail.com smtp --port=465 --user=mylibrarystaff@gmail.com --pass=xxxxx have also tried it using port=587 it has been trying to send overdue notices that seem to be correctly configured, and I have tried to send purchase suggestions as "test" emails but nothing comes through. getting this error message in mail.log Feb 17 19:04:04 koha nullmailer[8071]: Starting delivery: protocol: smtp host: smtp.gmail.com file: 1296735302.1339 Feb 17 19:04:04 koha nullmailer[8071]: Sending failed: Unspecified error any suggestions greatly appreciated! thaqnks.