May 2001
Intermediate to advanced
1088 pages
30h 13m
English
Content preview from Special Edition Using Java™ 2 Enterprise Edition
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Troubleshooting
SMTP Problems
My SMTP server tells me that it won't forward a message.
Either the sender or the recipient of the message must belong to the same domain as the SMTP server, or at least the computer you're running your program on must be in the same domain. Forwarding usually invites spammers to forward spam through your server.
| Q1: | If I try to send mail with a sender that doesn't exist, why won't Java Mail let it through? |
| Java Mail checks the sender to make sure it is a valid email address. If you really need to send such mail, use the SMTPSession class. |
Java Mail Problems
| Q1: | Why do I get a ClassNotFoundException for javax.activation.DataSource when I try to use the Java Mail API? |
| The Java Mail API also needs the Java Beans Activation ... |
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.