scheduled reports email authorization

Hello,

Im having trouble with scheduled reports. The warning emails are being sent but the daily reports are not being sent due to an authorization error. Any ideas why one email works and the other doesnt?

I am running 6014 on windows XP Sp2

Cheers

c.

javax.mail.MessagingException: 530 authentication required - for help go to http://help.yahoo.com/help/us/mail/pop/pop-11.html

07:00:18:148 AM at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1020)
07:00:18:148 AM at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:716)
07:00:18:148 AM at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:388)
07:00:18:148 AM at com.adventnet.nms.smtp.SmtpMailer.sendMessage(SmtpMailer.java:321)
07:00:18:158 AM at com.adventnet.nms.smtp.SmtpMailer.sendMessage(SmtpMailer.java:197)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleReports.sendType(ScheduleReports.java:960)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleReports.generateReportAccordingly(ScheduleReports.java:518)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleReports.generateRequiredReport(ScheduleReports.java:464)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleReports.getTypeFor(ScheduleReports.java:376)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleReports.getScheduleIDs(ScheduleReports.java:317)
07:00:18:158 AM at com.adventnet.me.opmanager.server.ScheduleReports.ScheduleRefresh.run(ScheduleRefresh.java:35)
07:00:18:158 AM at java.lang.Thread.run(Unknown Source)