Portal mail service "from" specification

Hello all,

I am using Portal mail service but if I do not specify te from field it did not work:

ISendMailService sendMailSvc = (ISendMailService) ResourceFactory.getInstance().getServiceFactory().getService(ISendMailService.SERVICE_ID);

ISendMailItem mailItem = sendMailSvc.createMailItem();

mailItem = sendMailSvc.createMailItem();

mailItem.setContent(content);

mailItem.setSubject(subject);

mailItem.setMimeType(type);

mailItem.setTo(to);

mailItem.setFrom("generic@hotmail.com");

sendMailSvc.sendMail(mailItem, ep5User);

By now I am using the same user registered inside portal for notifications but as I did not find a way to read this configuration I am fixing the email account inside my program and this is something I want to avoid.

Does anyone know if there is a way to read what is the email account specified in Portal for notification or if there is a way to ommit the specification of setFrom.

Regards,

Mauricio