SMTP Mercury JavaMail API connection error

tifanny66

posted Jul 26 '13 at 6:15 am

JavaMail is a Java API used to send and receive email via SMTP, POP3 and IMAP. JavaMail is built into the Java EE platform, but also provides an optional package for use in Java SE. You may refer to the code below.

import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
// Send a simple, single part, text/plain e-mail
public class TestEmail {
    public static void main(String[] args) {
        // SUBSTITUTE YOUR EMAIL ADDRESSES HERE!!!
        String to = "sendToMailAddress";
        String from = "sendFromMailAddress";
        // SUBSTITUTE YOUR ISP'S MAIL SERVER HERE!!!
        String host = "smtp.yourisp.invalid";
        // Create properties, get Session
        Properties props = new Properties();
        // If using static Transport.send(),
        // need to specify which host to send it to
        props.put("mail.smtp.host", host);
        // To see what is going on behind the scene
        props.put("mail.debug", "true");
        Session session = Session.getInstance(props);
        try {
            // Instantiate a message
            Message msg = new MimeMessage(session);
            //Set message attributes
            msg.setFrom(new InternetAddress(from));
            InternetAddress[] address = {new InternetAddress(to)};
            msg.setRecipients(Message.RecipientType.TO, address);
            msg.setSubject("Test E-Mail through Java");
            msg.setSentDate(new Date());
            // Set message content
            msg.setText("This is a test of sending a " +
                        "plain text e-mail through Java.\n" +
                        "Here is line 2.");
            //Send the message
            Transport.send(msg);
        }
        catch (MessagingException mex) {
            // Prints all nested (chained) exceptions as well
            mex.printStackTrace();
        }
    }
}//End of class

JavaMail is a <a href="http://www.keepautomation.com/products/java_barcode/" mce_href="http://www.keepautomation.com/products/java_barcode/">Java API</a> used to send and receive email via SMTP, POP3 and IMAP. JavaMail is built into the Java EE platform, but also provides an optional package for use in Java SE. You may refer to the code below.<pre class="de1">import java.util.*; import javax.mail.*; import javax.mail.internet.*; import javax.activation.*; // Send a simple, single part, text/plain e-mail public class TestEmail { public static void main(String[] args) { // SUBSTITUTE YOUR EMAIL ADDRESSES HERE!!! String to = "sendToMailAddress"; String from = "sendFromMailAddress"; // SUBSTITUTE YOUR ISP'S MAIL SERVER HERE!!! String host = "smtp.yourisp.invalid"; // Create properties, get Session Properties props = new Properties(); // If using static Transport.send(), // need to specify which host to send it to props.put("mail.smtp.host", host); // To see what is going on behind the scene props.put("mail.debug", "true"); Session session = Session.getInstance(props); try { // Instantiate a message Message msg = new MimeMessage(session); //Set message attributes msg.setFrom(new InternetAddress(from)); InternetAddress[] address = {new InternetAddress(to)}; msg.setRecipients(Message.RecipientType.TO, address); msg.setSubject("Test E-Mail through Java"); msg.setSentDate(new Date()); // Set message content msg.setText("This is a test of sending a " + "plain text e-mail through Java.\n" + "Here is line 2."); //Send the message Transport.send(msg); } catch (MessagingException mex) { // Prints all nested (chained) exceptions as well mex.printStackTrace(); } } }//End of class</pre>

Fred.jand

posted Oct 16 '12 at 4:55 am

I am trying to connect to Mercury mail server with a java

application and I am using JavaMail api. The connection is not successful and I’m

getting this error in the log:

EHLO 127.0.0.1

554 Invalid HELO

format

Which means that it connects to the server but the helo

format is not something that sever likes. I ‘ve tired to debug it and I got to

this code in JavaMail “SMTPTransport”

class which says:

serverOutput.write(cmdBytes);

serverOutput.write(CRLF);

serverOutput.flush();

and according to code

private static final

byte[] CRLF = { (byte)'\r', (byte)'\n' };

which seems consistent with

RFC 821

I know that on windows \n has different meaning but I am not sure if this really is the root

of problem? If it not then what can cause this?

I checked mail server with mail client and it works fine and

I checked the code with James mails server and it also works fine!

JavaMail API version is: 1.4.5 (latest release)

Mercury/32: 4.7

I am trying to connect to Mercury mail server with a java application and I am using JavaMail api. The connection is not successful and I’m getting this error in the log: EHLO 127.0.0.1 &nbsp;554 Invalid HELO format Which means that it connects to the server but the helo format is not something that sever likes. I ‘ve tired to debug it and I got to this code in JavaMail “SMTPTransport” class which says: serverOutput.write(cmdBytes);<o:p></o:p> serverOutput.write(CRLF);<o:p></o:p> serverOutput.flush();<o:p></o:p> and according to code private static final byte[] CRLF = { (byte)'\r', (byte)'\n' }; which seems consistent with RFC 821 <o:p>&nbsp;I know that on windows \n has different meaning &nbsp;but I am not sure if this really is the root of problem? If it not then what can cause this?</o:p> I checked mail server with mail client and it works fine and I checked the code with James mails server and it also works fine! JavaMail API version is: 1.4.5 (latest release) Mercury/32: &nbsp;4.7&nbsp;

PaulW

posted Oct 16 '12 at 10:40 am

[quote user="Fred.jand"]

I am trying to connect to Mercury mail server with a java application and I am using JavaMail api. The connection is not successful and I’m getting this error in the log:

EHLO 127.0.0.1

554 Invalid HELO format

[/quote]

Probably a compliance filter from MercuryS. To find out exactly what is wrong, turn on session logging in Configuration / MercuryS, General tab, and see the actual HELO sent.

(Don't forget to turn the logging off afterwards.)

[quote user="Fred.jand"] I am trying to connect to Mercury mail server with a java application and I am using JavaMail api. The connection is not successful and I’m getting this error in the log: EHLO 127.0.0.1 &nbsp;554 Invalid HELO format [/quote] Probably a compliance filter from MercuryS.&nbsp; To find out exactly what is wrong, turn on session logging in Configuration / MercuryS, General tab, and see the actual HELO sent. (Don't forget to turn the logging off afterwards.)

Rolf Lindby

posted Oct 17 '12 at 4:07 am

Try EHLO [127.0.0.1] (brackets are required).

/Rolf

Try&nbsp;EHLO [127.0.0.1] (brackets are required)./Rolf&nbsp;&nbsp;&nbsp;

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