547841 - AVG 9.0 inline text causes messages to appear as if they have attachments.

Status: NEW

(MailNews Core :: MIME, defect)

Description

[eric.egoldberg]

User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1

If AVG 9.0 is configured to add in-line text to incoming messages, certifying they have been scanned, Thunderbird indicates that the incoming email message has an attachment (paperclip icon next to message).  

Unchecking "Certify Email" within AVG Advanced Settings/E-Mail Scanner properties provides a work-around.

Reproducible: Always

Steps to Reproduce:
1.Install AVG Free on Windows Vista x64 (default configuration).
2.Install/Configure Thunderbird.
3.Receive text message.
Actual Results:  
All messages indicated an attachment was present.

Expected Results:  
Only messages with attachments would indicate an attachment was present.

Comment 1

[Nathan Tuggy (:tuggyne)]

I believe this is a problem with AVG; I suspect that AVG actually adds what is effectively an attachment to Thunderbird.

Can you attach an example message to this bug, both with and without Certify Email enabled? (If you can send yourself the same identical message twice, that would be ideal.)

Comment 2

[David :Bienvenu]

Do we clear the attachment flag when you click on the message? This would be evidence that the AVG software is messing around with the content type (e.g., setting it to multipart/mixed). If so, there's not much we can do about it.

Comment 3

[Rimas Kudelis [use needinfo to ping]]

Attachment: Example multipart/alternative message

I have a different case, but also with AVG, thus filing it here.

Apparently, at least in some cases it adds its "certificate" (which indeed is nothing but their advertisement) as a multipart/alternative part. In that case instead of showing the actual message, Thunderbird shows this AVG's attachment.

I see it as AVG's bug, but haven't found a way to report it to them (yet).

Comment 4

[Rimas Kudelis [use needinfo to ping]]

By the way, in my case, there's absolutely NO indication about the message actually having another part. You have to look into message source to see it.

Comment 5

[Ludovic Hirlimann [:Usul]]

(In reply to comment #3)
 
> I see it as AVG's bug, but haven't found a way to report it to them (yet).

best bet would be to use http://forums.avg.com/.

Comment 6

[Ludovic Hirlimann [:Usul]]

I can reproduce using the attached testcase.

Message is built with :
--=======AVGMAIL-376F32F2=======
Content-Type: text/plain; charset=ISO-8859-1

some text including the one displayed

--=======AVGMAIL-376F32F2=======
Content-Type: text/plain; x-avg=cert; charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
Content-Description: "Certification"

only the text being displayed.

--=======AVGMAIL-376F32F2=======--


This might be a dup however.

Comment 7

[Rimas Kudelis [use needinfo to ping]]

I'm not sure, but I have a slight suspition that this nonsence may have actually been caused by the mailing list daemon...