Getting errors using JavaMail

[Janelle Goldsmith]

Hi All,
I have written an application which sends emails using JavaMail.Sometimes these mails are sent successfully without any issue.
But sometimes, I get errors like -
The email could not be sent because - Sending failed;
nested exception is:
class javax.mail.MessagingException: Could not connect to SMTP host: mail.hotmail.com, port: 25;
nested exception is:
java.net.ConnectException: Operation timed out: connect
or sometimes I get -
The email could not be sent because - Sending failed;
nested exception is:
class javax.mail.MessagingException: Could not connect to SMTP host: mail.hotmail.com, port: 25;
nested exception is:
java.net.ConnectException: Connection refused: connect
These errors occur very frequently and though the error messages indicate that the mail server is not accepting any request, is there some way to overcome it ?
Please reply ASAP...in a tight spot...:-(
Thanks in advance

[William Brogden]

Obviously you need to provide for trying again after a delay. I like to create objects that hold a mail message and place them in a queue. A separate Thread wakes up occasionally and tries to send the messages in the queue.
If you make the mail holding object serializable you could write it to disk for long term storage in a particular directory.
Bill