JavaMail SMTPAddressFailedException: 550 5.7.1 Unable to relay for ... (Grails) - grails

Question

I am trying to send mail using javamail from my Grails application (via a service).
Both the from and to addresses being used have the organization domain names.
The same code, when run via command line as a groovy script (on the same server) works as expected.
However, running on the grails server (under war mode) produces the following exception :
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for ---#---.com
at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1873)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1120)
at javax.mail.Transport.send0(Transport.java:195)
at javax.mail.Transport.send(Transport.java:124)
at javax.mail.Transport$send.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:124)
at cs.MailService.mail(MailService.groovy:66)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
The code is written as follows :
import javax.mail.internet.*
import javax.mail.*
import javax.activation.*
class Mailer {
def static mail(String toAddress, String subject, String body) {
println "mail called"
println "${toAddress}, ${subject}, ${body}"
try {
def fromAddress = "---#---.com"
def properties = new Properties()
properties.setProperty("mail.transport.protocol","smtp")
properties.setProperty("mail.smtp.host","---------")
def sessionInstance = Session.getDefaultInstance(properties,null);
def msg = new MimeMessage(sessionInstance)
def stringTokenizer = new StringTokenizer(toAddress,";")
def toAddressList = []
while(stringTokenizer.hasMoreElements()){
toAddressList.add(new InternetAddress(stringTokenizer.nextElement().toString()));
}
def to = new InternetAddress[toAddressList.size()]
to = (InternetAddress[]) toAddressList.toArray(to)
msg.setRecipients(MimeMessage.RecipientType.TO,to)
def from = new InternetAddress(fromAddress)
msg.setFrom(from);
msg.setSubject(subject)
def mimeMultipart = new MimeMultipart()
def mimeBodyPart = new MimeBodyPart()
mimeBodyPart.setContent("<p style='font-family:calibri;color:blue;font-size:20px;text-align:center;'>"+body+"</p>", "text/html")
mimeMultipart.addBodyPart(mimeBodyPart)
msg.setContent(mimeMultipart)
def transporter = sessionInstance.getTransport("smtp")
transporter.connect()
transporter.send(msg)
} catch(Exception e) {
e.printStackTrace()
}
}
public static void main(String[] args) {
def to="---#---.com"
def subject="Call Scheduler Notification"
def body='<font face="Segoe UI"><p><b><font color="#6B0667">Hi --- ---,<br><br>Your Call (id: 1281) Was Updated Successfully</b></font></p><table cellpadding="10" bgcolor="#B799B6"><caption><b><font color="#6B0667">Call Details</font></b></caption><tr><td><b>Title</b></td><td>---------</td></tr><tr><td><b>Start</b></td><td>---------</td></tr><tr><td><b>End</b></td><td>---------</td></tr><tr><td><b>Number</b></td><td>---------</td></tr><tr><td><b>Passcode</b></td><td>---------</td></tr><td><b>Special Instructions</b></td><td></td></tr><td><b>Callback Number</b></td><td>---------</td></tr></table><br><p><b><font color="#6B0667">Regards<br>Call Scheduler</b></font></p></font>'
mail(to, subject, body);
}
}
How do i get past this error ?
Update : Still not entirely sure what was wrong here. But resetting all the tcp/ip connections (from the mail server) resolved the issue.

Answer 1

You probably need to authenticate.
I don't know why it works from the command line.