User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.0) Gecko/20020530 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.0) Gecko/20020530 This works fine with Netscape 4.7x, but is not able to send messages with Mozilla 1.0 or Netscape 7.0. Mail messages can be seen, deleted, moved, but not sent. The message does get delivered to the end user, but cannot be copied to the Sent or Drafts folder. It stays at the Copying Message to Sent folder... box. The 'Mail Server Responded: Invalis Mailbox Name' error comes up immediately when sending or trying to save to Drafts folder. Reproducible: Always Steps to Reproduce: 1. Compose message 2. Select recipient (any) 3. Send message Actual Results: same as Details above Expected Results: Sent message, placed copy in Sent folder.
Are you sure that your Username/password is correct ? (see you outgoing server configuration : Account Settings/Outgoing Server/Advanced and Account Settings/Account/Advanced) Do you use a pop3 or imap server ?
Try this workaround: change your sent and drafts folder to copy to local folder and see if you can send message and save message. Also if you saving the copy to the folders on the imap server, you need to make sure it has the correct settings in copies and folder.
Brian - are you still seeing this problem?