David,
A troubleshooting idea.  I'd isolate this problem by ensuring you
can communicate directly via javamail.  Try a simple test such as this
(in a JSP will work fine)...

String host = "smtp.verizon.net";
String from = "[EMAIL PROTECTED]";
String to = "[EMAIL PROTECTED]";

// Get system properties
Properties props = System.getProperties();

// Setup mail server
props.put("mail.smtp.host", host);

// Get session
Session mailsession = Session.getDefaultInstance(props, null);

// Define message
MimeMessage message = new MimeMessage(mailsession);

// Set the from address
message.setFrom(new InternetAddress(from));

// Set the to address
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

// Set the subject
message.setSubject("Test message");

// Set the content
message.setText("Testing");

// Send message
Transport.send(message);

If this works.. then I'd suspect something in TC or your config.  If it
doesn't.. you might want to post this info. to the javamail list.  Lots
of helpful people over there.

Good luck,
Shawn.

> yes, I stopped and restarted the Tomcat service.
>
> Denis Haskin wrote:
>
>> From the error, looks like it's still trying to connect to an smtp
>> server at localhost.  Did you restart Tomcat after changing
>> mail.smtp.host?
>>
>> dwh
>>
>> David Diskin wrote:
>>
>>> I've just set up Tomcat  4.1.18 on my Windows XP Home  PC.   I
>>> installed it as a service.  I have no problem connecting to the
>>> Tomcat main web page.  I reconfigured conf/server.xml and changed to
>>>  value of mail.smtp.host to "smtp.verizon.net", my  isp mail server.
>>>   However, when I go to run the jsp send mail example, I get the
>>> following exception.  Can anyone help on  this?
>>> ======================================================
>>> ENCOUNTERED EXCEPTION: javax.mail.SendFailedException: Sending
>>> failed; nested exception is: javax.mail.MessagingException: Could
>>> not
>>>  connect to SMTP host: localhost, port: 25; nested exception is:
>>> java.net.ConnectException: Connection refused: connect
>>>
>>
>>
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>
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