Its not cloudstack related error. There is some problem with your smtp server. See if this link can help you http://www.carehart.org/blog/client/index.cfm/2009/4/18/cfmail_530_error. Try googling with the same error.
From: zcsu [mailto:szc...@hotmail.com] Sent: Thursday, March 27, 2014 12:22 PM To: dev@cloudstack.apache.org; Anshul Gangwar Subject: RE: Alert Email must be SSL? Thanks anshul The others global setting is the same if alert.smtp.useAuth is default value, Error Log is: 2014-03-27 14:48:29,819 ERROR [cloud.alert.AlertManagerImpl] (Email-Alerts-Sender-1:null) Failed to send email alert com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.3 Client was not authenticated if alert.smtp.useAuth is true 2014-03-27 13:31:45,687 ERROR [cloud.alert.AlertManagerImpl] (Email-Alerts-Sender-1:null) Failed to send email alert javax.mail.MessagingException: Exception reading response (javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?) > From: anshul.gang...@citrix.com > To: dev@cloudstack.apache.org > Subject: RE: Alert Email must be SSL? > Date: Thu, 27 Mar 2014 06:38:25 +0000 > > Have you configured your smtp host and port correctly? > > If there is authentication enabled then you have set the appropriate global > setting alert.smtp.useAuth etc. > > Regards, > Anshul > > -----Original Message----- > From: zcsu [mailto:szc...@hotmail.com]<mailto:[mailto:szc...@hotmail.com]> > Sent: Thursday, March 27, 2014 11:20 AM > To: dev@cloudstack.apache.org<mailto:dev@cloudstack.apache.org> > Subject: Alert Email must be SSL? > > Hi > > I configured Alert Email in Global Setting, but i don't receive any alert, I > find ERROR info in management-server.log as below, > > 2014-03-27 13:31:45,687 ERROR [cloud.alert.AlertManagerImpl] > (Email-Alerts-Sender-1:null) Failed to send email alert > javax.mail.MessagingException: Exception reading response > (javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?) > > > CloudStack 4.2 +CentOS 6.4 > > [Question] How to correctly Alert Email? Anybody answer me, thank a million. > >