343121 - SeaMonkey 1.02 can't open attachments to attached e-mail; Mozilla 1.7.12 does.

Status: RESOLVED DUPLICATE of bug 203570

(SeaMonkey :: General, defect)

Description

[Fred Yontz]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.4) Gecko/20060516 MultiZilla/1.8.2.0i SeaMonkey/1.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.4) Gecko/20060516 MultiZilla/1.8.2.0i SeaMonkey/1.0.2

When an e-mail with attachments is forwarded as an attachment, SeaMonkey 1.02 Mail will show the attachments to the forwarded message, but can't open them. Using the same profile in Mozilla 1.7.12 Mail and opening the same message with the forwarded e-mail, the attachments to the forwarded e-mail are accessible and can be opened.

Reproducible: Always

Steps to Reproduce:
1. Create a message with attachments and send to self
2. Save received message with attachments as .eml file
3. Send message to self with .eml file as attachment
4 [review]. Open received message, double-click .eml file attachment to show its attachments
5. Try to open attachments to attached message

Actual Results:  
Double-clicking the forwarded e-mail attachment opens a second message window with the attachments to the forwarded message shown. Double-clicking on one of these attachments to open it results in nothing happening. 

Using the same profile and mail files in Mozilla 1.7.12, this same process results in an inner attachment being opened.

Expected Results:  
I expect the attachments to the attached (forwarded) e-mail to open from the attachment window when the attached e-mail is opened in a second message window.  With SeaMonkey 1.02 the attachments to the attached (forwarded) e-mail are inaccessible, and that is unacceptable.

This appears to be a regression in behavior from Mozilla 1.7.12, which performs as expected.  This was called to my attention by a user of a Windows XP system, and I have confirmed the behavior under Windows 2000 and Windows 95.  The Windows XP user is presently forced to switch from SeaMonkey 1.02 back to Mozilla 1.7.12 to handle these forwarded e-mails with attachments.

Comment 1

[Fred Yontz]

This behavior has also been reported in Thunderbird 1.5.0.2 in Bug 336650.

Comment 2

[Brian Polidoro]

*** Bug 343120 has been marked as a duplicate of this bug. ***

Comment 3

[Mike Cowperthwaite]

From bug 203570 comment 47

> I haven't digested all the details of Bug 203570, but as I reported in my 
> Bug 343121 filing, the problem of nested attachments as I experienced it was
> present in SeaMonkey 1.02, but not in Mozilla 1.7.12.  So if what I
> experienced is the same problem, with the same cause, as 203570, it's
> curious that it wasn't there in Mozilla 1.7.12, but reappears in SeaMonkey
> 1.02.

You are correct that there was a regression between Moz 1.7 and Seamonkey 1.0, but if you run a current Seamonkey 1.5 nightly build (mine is dated Aug 17), you'll see that not only is the regression from 1.0 fixed, but the parallel problem that *did* exist in 1.7 -- where the forwarded message's attachment would not display inline when the forwarded message was opened into its own window (bug 206278) -- has also been fixed.

Bug 336650 is the earliest report I'm aware of that reported the regression.  I've been running with a fixed version for so long that the distinctions between the two problems blurred.  I guess it's possible that some other patch issued between the first 1.8 branch and the current 1.8.1 branch fixed this particular problem, rather than 203570; if you think it's important, grab a copy of the nightlies builds from  2005-10-27 and 2005-10-28 and see.

*** This bug has been marked as a duplicate of 203570 ***