361681 - No email will be downloaded from POP3 server if there is any email with large attachment

Status: RESOLVED WORKSFORME

(Thunderbird :: Mail Window Front End, defect)

Description

[forum]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; de; rv:1.8.1) Gecko/20061010 Firefox/2.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; de; rv:1.8.1) Gecko/20061010 Firefox/2.0

If ther is at least one (=1) email on th ePOP3 server with a large attachment (> 1 MB), Thunderbird 1.5.0.8 don't download any of them.

In the status bar you can read: receiving 1 email from 8 (e.g.), but after a few seconds it ends: no email, no error message.
Neither the large email nor the "small" emails are downloaded.

After removing the large email, all other emails can be downloaded without problems.

It is indipendent from the provider (t-online.de, yahoo.de, compuserve.de)

And there is no difference between one large attachment or a sum of attachments.


Reproducible: Always

Steps to Reproduce:
1. Send an email with a large attachment (>1 MB) to an email account which allows large emails, maybe more small emails.
2. Press Download Button in Thunderbird to download the email


Actual Results:  
1. status bar: connect to <pop-server>
2. receive email 1 from n (n = nummber of emails on pop-server)
3. No email in Inbox, emails still on the server

Expected Results:  
All emails (inlcluding the large one) can be downloaded.

I deactivated virus scan software and firewall.

Comment 1

[Magnus Melin [:mkmelin]]

Can you attach a POP3 protocol log?
http://www.mozilla.org/quality/mailnews/mail-troubleshoot.html#pop

Comment 2

[forum]

Attachment: 2 Messages - 1 large, no email received

POP3-Log of thunderbird 1.5.0.8:

Situation: 2 messages on server, 1 large and 1 small
           -> no email received, 2 messages still on server

Comment 3

[Magnus Melin [:mkmelin]]

Ok, so the end of that log is as follows, I don't know what's the meaning of it, but maybe someone else have a clue...

0[2345d8]: Opening message stream: MSG_IncorporateBegin
0[2345d8]: Done opening message stream!
0[2345d8]: RECV: (null)

Comment 4

[forum]

I have it:

I use McAfee virusscan and in the section "Options/ActiveShield" the field "Scan e-mail and attchments" was activated (it's not possible to confgure more e-mail parameter).

After recognizing the problem with the large attachments I deactivated the virusguard. The Problem still existed.

After that I terminated McAfee virusscan. The problem still existed.

At that time I mentioned that McAffe is not responsible.

But: when I marked/demarked the checkbox of email-scan I got the information to restart the email-client.

That means that the option "scan e-mail and attachment" is still active even though the virus guard is deactivated or not running. Therefore I deactivated the "scan e-mail and attachment" option (and restarted thunderbird).

-> After that all e-mails (including all large emails/attachments) were downloaded .

Comment 5

[David :Bienvenu]

yes, this kind of problem almost always turns out to be a problem with the virus checker. Marking WFM