8bit messages created from stream are not converted to 7bit

[glassfishrobot]

(Originally submitted to Sun bug system, transferred to Oracle bug system, and finally here for resolution. Originally submitted by [email protected] on 2006-08-02 18:22:38.)

EXTRA RELEVANT SYSTEM CONFIGURATION : Input mail contains 8bit parts, remote server does not support 8bitmime

A DESCRIPTION OF THE PROBLEM : Javamail smtp transport does not check the remote server to see wether it supports 8bitmime before sending 8bit mails. This is not a problem with messages created via apis, but it is an issue when the message come from a stream and already contains 8bit chars.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : Create a message from stream. Be sure that this message contains a "Content-Transfer-Encoding: 8bit" and 8bit content. Send it to an smtpserver that do not support the ESMTP 8BITMIME extension.

EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - When a MimeMessage is created from a stream, the stream contains 8bit contents (Content-Transfer-Encoding: 8bit) and we send it to a remove server not supporting 8bitmime Javamail should automatically convert the content to 7bit.

ACTUAL - The message is not converted and is refused/corrupted by the remote server.

REPRODUCIBILITY : This bug can be reproduced always.

Affected Versions

1.4.3

Environment

All All

[glassfishrobot]

• Issue Imported From: https://github.com/javaee/javamail/issues/100
• Original Issue Raised By:@glassfishrobot
• Original Issue Assigned To: @bshannon

[glassfishrobot]

@glassfishrobot Commented @bshannon said: It would be expensive to check every message for this issue since it rarely happens. There's currently an option to convert 7bit messages to 8bit when possible. It's a bit of a kludge, and not perfect, but a similar approach could be considered for this case.

[glassfishrobot]

@glassfishrobot Commented javahollic said: we're starting to see more and more 8bit mime messages, despite 8bit messages being illegal in SMTP use AFAIK. It would indeed be expensive to check a message recursively, however, as happens, I use the Message.writeTo anyway, we find this resolves quite a few syntax issues anyway, it would be perfect if this could also be made to convert the content to 7bit as it went.

[glassfishrobot]

@glassfishrobot Commented Reported by @bshannon

[glassfishrobot]

@glassfishrobot Commented This issue was imported from Bugzilla JAVAMAIL-6277