unable to send email

Coldfusion 10 on marverics, all updates are up to date

tried to send email:

<cfmail to="yal9012@nyp.org" from="yal9012@nyp.org" subject="test email">

</cfmail>

I got blank page. Checked the mail.log:

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"Error","scheduler-1","06/05/14","15:14:04",,"The ColdFusion mail spool encountered an invalid spool file in the spool directory. The invalid file Mail1565737694416095906.cfmail was moved to the undelivered directory."

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in exception.log

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"Error","scheduler-1","06/05/14","15:14:04",,"The ColdFusion mail spool encountered an invalid spool file in the spool directory. The invalid file Mail1565737694416095906.cfmail was moved to the undelivered directory."

coldfusion.mail.MailSpooler$InvalidSpoolFileException: The ColdFusion mail spool encountered an invalid spool file in the spool directory.

  at coldfusion.mail.MailSpooler.processFile(MailSpooler.java:2292)

  at coldfusion.mail.MailSpooler.retrieveSpoolMail(MailSpooler.java:2259)

  at coldfusion.mail.MailSpooler.access$500(MailSpooler.java:85)

  at coldfusion.mail.MailSpooler$SpoolerSoftCache.fetch(MailSpooler.java:2704)

  at coldfusion.util.SoftCache.get_statsOff(SoftCache.java:133)

  at coldfusion.util.SoftCache.get(SoftCache.java:81)

  at coldfusion.mail.MailSpooler.retrieveMail(MailSpooler.java:2165)

  at coldfusion.mail.MailSpooler.sendMail(MailSpooler.java:1189)

  at coldfusion.mail.MailSpooler.deliverStandard(MailSpooler.java:1613)

  at coldfusion.mail.MailSpooler.run(MailSpooler.java:1578)

  at coldfusion.scheduling.ThreadPool.run(ThreadPool.java:211)

  at coldfusion.scheduling.WorkerThread.run(WorkerThread.java:71)

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Appreciated if any one can help.