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POJavamail / email commons: empty message gives strange error
 

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  1. POJavamail / email commons: empty message gives strange error
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    <p>I'm trying to send an email message via GMail (Google Apps, actually). This works perfectly for normal messages, but of course I have to test the extremes.</p> <p>Right now I'm trying to send a message without a body and I'm getting a strange error message. As I want to eliminate errors in my code, I'd like to know whether I'm doing something wrong or that there is an error in the libraries I'm using.</p> <pre><code>HtmlEmail currentMessage = new HtmlEmail(); currentMessage.setSSL(true); currentMessage.setSslSmtpPort(465); currentMessage.setHostName("smtp.gmail.com"); currentMessage.setAuthentication("abc@gmail.com", "secret"); /** rs is a ResultSet from database **/ if(rs.getString("mailFrom") != null &amp;&amp; !rs.getString("mailFrom").isEmpty()) currentMessage.setFrom(rs.getString("mailFrom")); else currentMessage.setFrom("abc@gmail.com"); currentMessage.setTo(this.convertRecipientStringToArray(rs.getString("mailTo"))); currentMessage.setCc(this.convertRecipientStringToArray(rs.getString("mailCC"))); currentMessage.setBcc(this.convertRecipientStringToArray(rs.getString("mailBC"))); currentMessage.setSubject(rs.getString("mailSubject")); if(rs.getString("mailBody") != null &amp;&amp; !rs.getString("mailBody").isEmpty()) currentMessage.setTextMsg(rs.getString("mailBody")); if(rs.getString("mailHtmlBody") != null &amp;&amp; !rs.getString("mailHtmlBody").isEmpty()) currentMessage.setHtmlMsg(rs.getString("mailHtmlBody")); if(rs.getString("mailReplyTo") != null &amp;&amp; !rs.getString("mailReplyTo").isEmpty()) currentMessage.addReplyTo(rs.getString("mailReplyTo")); else currentMessage.addReplyTo("def@gmail.com"); currentMessage.send(); </code></pre> <p>This code works for "normal" emails: with a valid body, subject, addressees etc.</p> <p>When both <em>mailBody</em> <strong>and</strong> <em>mailHtmlBody</em> are <em>NULL</em> or empty in the databse, I get the following error:</p> <blockquote> <p>Sending the email to the following server failed : smtp.gmail.com:25</p> </blockquote> <p>Full error log (own log format) / stacktrace:</p> <pre><code>[CRITICAL] 2012-12-19 17:08:00 [CET] - Exception occurred in function com.mypackage.mymailobject.outgoing_sendMails: Sending the email to the following server failed : smtp.gmail.com:25 Stack trace: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.gmail.com:25 at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1242) at org.apache.commons.mail.Email.send(Email.java:1267) at com.mypackage.mymailobject.outgoing_sendMails(mymailobject.java:85) at com.mypackage.mymailobject.outgoing_do(mymailobject.java:69) at com.mypackage.Mailer.main(Mailer.java:132) Caused by: javax.mail.MessagingException: IOException while sending message; nested exception is: java.io.IOException: javax.mail.MessagingException: Empty multipart: multipart/mixed; boundary="----=_Part_0_916488860.1355933279096" at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1141) at javax.mail.Transport.send0(Transport.java:195) at javax.mail.Transport.send(Transport.java:124) at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1232) ... 4 more Caused by: java.io.IOException: javax.mail.MessagingException: Empty multipart: multipart/mixed; boundary="----=_Part_0_916488860.1355933279096" at com.sun.mail.handlers.multipart_mixed.writeTo(multipart_mixed.java:105) at javax.activation.ObjectDataContentHandler.writeTo(Unknown Source) at javax.activation.DataHandler.writeTo(Unknown Source) at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1476) at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1772) at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1099) ... 7 more </code></pre> <p>I now have 2 questions:</p> <ol> <li>Should it be possible to send an email without a body? Is that allowed?</li> <li>Why has the error message port number 25 instead of 465?</li> </ol>
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    1. USbartlaarhoven
    1. USbartlaarhoven
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      1. POJavamail / email commons: empty message gives strange error
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    1. COHave you tried if setting the message to an empty string works? Also, is that the complete error message, no stacktrace or nested exception?
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      1. USJörn Horstmann
    2. COIf I set the message to an empty string, I get another exception from Apache Commons Email. See line 131 at http://commons.apache.org/email/xref/org/apache/commons/mail/HtmlEmail.html
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      1. USbartlaarhoven
    3. COAdded the stacktrace to the original post. :) Does this help?
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      1. USbartlaarhoven
 

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