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On 2012-03-19T23:14:21+00:00 matteo sisti sette wrote:

User Agent: Mozilla/5.0 (X11; Linux i686) AppleWebKit/535.11 (KHTML,
like Gecko) Chrome/17.0.963.79 Safari/535.11

Steps to reproduce:

Make sure you're not connected to network (in my case it's wifi, dunnow if this 
is relevant)
Open Thunderbird
Connect to network.
Check that the network connection works by opening a web page in a browser
Go to Thunderbird and click "get mail"


Actual results:

"looked up gmail.com"  (or whatever is the mail server domain) appears on the 
status bar and stays there for a while. Then it disappears.
Mail is not checked, and no error message is shown.
This happens systematically, 100% of the times.

Then I click "get mail" again, and it ALWAYS works the second time.


Expected results:

thunderbird should have connected to the mail server and checked for new
messages the first time.

This issue has always existed ever since I've used Thunderbird, back to
version 3 or something. On older versions it was only _slightly_ better,
in that you would get a baloon notification (or is it called a toast?)
saying "unable to connect" and a (wrong) message on the status bar
saying "no messages to download" on the first try.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/584529/comments/35

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On 2012-03-20T04:38:52+00:00 M-wada wrote:

(In reply to matteo sisti sette from comment #0)
> Actual results:
> "looked up gmail.com"  (or whatever is the mail server domain) appears on
> the status bar and stays there for a while. Then it disappears.
> Mail is not checked, and no error message is shown.
> This happens systematically, 100% of the times.
> Then I click "get mail" again, and it ALWAYS works the second time.

This phenomenon can occur if IPv6 relevant problem exists in your environment.
- first DNS lookup(IPv6 address resolution) takes very long
  => timeout, Tb is unable to login.
- upon second DNS lookup by Tb, IPv6 address resolution is alrweady done by
  first request, then second DNS look up ends within a shor period.
This started to occur from Tb 3, because defaullt of network.dns.disableIPv6 
was changef rom true to false by Tb 3.

What happens if network.dns.disableIPv6=true is set?
(restart Tb after setting change to avoid needless problems)

Reply at: https://bugs.launchpad.net/thunderbird/+bug/584529/comments/36

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On 2012-03-20T04:49:02+00:00 M-wada wrote:

Because Wifi, wireless connection is established upon first network
request from PC. It may take long and first DNS Lookup by Tb may
timeout.

How long does "first ping(or tracert) imap.gmail.com after re-boot" take in 
your environment?
(1) Re-boot PC, (2) First "ping imap.gmail.com", (3) Second "ping 
imap.gmail.com", (4) Start Tb with network.dns.disableIPv6=false(default) or 
true, (5) Gmail IMAP folder access, Get Msgs etc.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/584529/comments/37

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On 2012-05-18T14:43:38+00:00 Steve Chapel wrote:

I can confirm this is an issue in Thunderbird 12 on Ubuntu 12.04.

Reply at: https://bugs.launchpad.net/thunderbird/+bug/584529/comments/38


** Changed in: thunderbird
       Status: Unknown => Confirmed

** Changed in: thunderbird
   Importance: Unknown => Medium

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to thunderbird in Ubuntu.
https://bugs.launchpad.net/bugs/584529

Title:
  Thunderbird complains there is no connection on resume from suspend,
  when there is a connection

Status in Mozilla Thunderbird Mail and News:
  Confirmed
Status in “thunderbird” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: thunderbird

  When I resume from suspend, network manager quickly re-establishes a
  WiFi internet connection.  With an active connection, I try to check
  my mail with Thunderbird, but it complains that it can't connect to
  the IMAP server.  This seems to happen after longer suspend periods
  because if I try to replicate the behaviour by quickly suspending and
  resuming (suspend of a few seconds), I get no warning.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: thunderbird 3.0.4+nobinonly-0ubuntu4
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic x86_64
  Architecture: amd64
  Date: Sun May 23 12:26:28 2010
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100412)
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: thunderbird

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