SMTPSendFailedException: 530, Address requires authentication
Applies to:
NA
Description:
Occurs when trying to send a message
Cause:
You have tried to send a message.
Error List
Error List for the ‘JAVA-Mail’ Category
Headers do not reflect the message changes
Applies to:
NA
Description:
Occurs when modifying a message
Cause:
You have modified a message, but the headers do not reflect the changes.
UnsupportedDataTypeException when sending new message
Applies to:
NA
Description:
Occurs while sending a message with unsupported content
Cause:
You probably set some content for your message using the setContent(Object o, String type) method.
MessagingException: 501 HELO requires domain address
Applies to:
NA
Description:
Occurs while trying to send a message
Cause:
The SMTP provider uses the results of InetAddress.getLocalHost().getHostName() in the SMTP HELO command. If that call fails to return any data, no name is sent in the HELO command.
Must issue a STARTTLS command first
Applies to:
NA
Description:
Occurs while trying to send a message
Cause:
Your SMTP server wants you to switch from a plain text connection to a secure connection using the STARTTLS command.
javax.mail.SendFailedException: 550 Unable to relay for my-address
Applies to:
NA
Description:
Occurs while trying to send a message
Cause:
This is not a JavaMail problem. This is an error reply from your SMTP mail server.
Connection refused error
Applies to:
NA
Description:
Occurs while trying to send a message
Cause:
The host you’re trying to connect to is most likely not running a mail server.
Error 553: To send mail, first check your mail with a valid POP account
Applies to:
NA
Description:
Occurs while sending a mail
Cause:
In order to prevent their use to send spam, some mail servers will require you to have a valid POP3 account and require you to login to that account before they’ll let you send mail through that mail server.
Problems using POP3 with Microsoft Exchange
Applies to:
NA
Description:
Occurs while using POP3 protocol with Microsoft Exchange
Cause:
Some versions of Microsoft Exchange do not implement the POP3 protocol properly. They return different headers from the TOP command than they do from the RETR command. This can cause all sorts of strange failures in JavaMail.
java.lang.NoSuchFieldError: contentStream at com.sun.mail.pop3.POP3Message.getContentStream(POP3Message.java:115)
Applies to:
NA
Description:
Occurs while using POP3 protocol
Cause:
You’ve mixed versions of the POP3 provider and mail.jar. You probably have an older version of mail.jar in your CLASSPATH before the newer version that includes the POP3 provider.