451 delivery failure - Subject too long

[briand]

ZCS 6.0.1GA - Ubuntu 8.04

Hi,

I have a deferred message sitting in queue. When I try to deliver it, I get back a 451 error. Looking in the mailbox.log there is an error that states 'system failure: subject too long'

Is there any way to recover this mail? Should I just delete it?

What is the subjects maximum string length? Can this be changed?

Should I file a bug report? Should Zimbra truncate the string automagically when this occurs?

[briand]

I manually edited the message file, and deleted a portion of the subject. I then requeued it, and it appears to have been delivered ok.

[briand]

I just did some testing with by creating various length subjects in to the thousands of characters, just to try and see what the limit was. I created the mail in the webgui, and also sent mail from another mail server.
I can's say that I see any limit, but I did get an occasional deferred message for no reason that I understand.