[JAMES-139] Redirect mailet: MIME-encoded subject is changed event if a prefix is not specified

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 2.1
• Component/s: UsersStore & UsersRepository
• Environment: Operating System: FreeBSD; Platform: PC
• Bugzilla Id: 24053
• Assignee: Unassigned
• Reporter: Iwasa Kazmi
• Created: 23/Oct/03 19:01
• Updated: 06/Jun/04 18:49
• Resolved: 06/Jun/04 18:49

Description

When a message was processed by Redirect mailet, a MIME-encoded
subject may be changed its charset to server's default charset.
Javamail decodes/encodes a header automatically.

If a prefix was specified, change of charset is reasonable,
because a header is modified. But even if a prefix was not specified,
Redirect mailet changes a charset of a header without any text addition.

I'm using Redirect mailet on James 2.1.3 with settings like below.

<mailet match="SenderIs=xxxx@xxxxx" class="Redirect">
<recipients>yyyy@yyyyy</recipients>
<inline>unaltered</inline>
<attachment>none</attachment>
<passThrough>TRUE</passThrough>
</mailet>

I thought the mailet will duplicate a message as it is.
But a MIME-encoded subject is re-encoded with a default encoding.
A problem may occur if javamail couldn't decode a subject header
correctly or if server's locale was not set appropriately.

Please don't touch a subject header when a prefix is not
specified:

//Set additional headers
if (!getSubjectPrefix().equals(""))

{ reply.setSubject(getSubjectPrefix() + message.getSubject()); }