Hi support,
This is a bug report/question. I am having problems when I try to send a html email template with a notification. I have set up the email sending options so they work and sending plain text email and sending email using a simple html email template works as it should. When I try to use a slightly more complex html email template (same exact setup) I get the following error. Support, can you advise on what the error might be:

2014-07-09 01:15:18,735 ERROR Email#admin -Email was not sent.
javax.mail.MessagingException: Can't send command to SMTP host;
  nested exception is:
	java.net.SocketException: Connection closed by remote host
	at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2157)
	at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2144)
	at com.sun.mail.smtp.SMTPTransport.close(SMTPTransport.java:1210)
	at javax.mail.Transport.send0(Transport.java:197)
	at javax.mail.Transport.send(Transport.java:124)
	at com.bas.basserver.iopipes.EmailSink.A(Unknown Source)
	at com.bas.basserver.iopipes.EmailSink.processMessage(Unknown Source)
	at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
	at org.openadaptor.adaptor.SimpleController.processMessage(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.processMessage(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
	at com.bas.connectionserver.iopipes.RequestReplySource.sendMessages(Unknown Source)
	at com.bas.basserver.channels.ChannelManager.A(Unknown Source)
	at com.bas.basserver.channels.ChannelManager.sendNotifications(Unknown Source)
	at com.bas.basserver.bsmanager.F.A(Unknown Source)
	at com.bas.basserver.bsmanager.E.A(Unknown Source)
	at com.bas.basserver.bsmanager.F.A(Unknown Source)
	at com.bas.basserver.bsmanager.F.A(Unknown Source)
	at com.bas.basserver.iopipes.ComponentSink.processMessage(Unknown Source)
	at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
	at com.bas.openadaptor.NonTransactionalController.processMessage(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimplePipe.processMessage(Unknown Source)
	at org.openadaptor.adaptor.STPipelineController.processMessage(Unknown Source)
	at com.bas.openadaptor.NonTransactionalController.processMessage(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.processMessage(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
	at org.openadaptor.adaptor.AbstractSimpleSource.sourceProcess(Unknown Source)
	at com.bas.openadaptor.A$_A.run(Unknown Source)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.net.SocketException: Connection closed by remote host
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkWrite(SSLSocketImpl.java:1307)
	at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:43)
	at com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:128-)
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
	at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2155)
	... 29 more

Thanks

PS: The email template is a professionally designed, litmus tested, working email template.