Hello.
I use Thunderbird and avast 4.6 on XP sp 2 with every accesses alloweded to avast by the firewall (Sygate) and I have this pile of Connection timeout messages …
The frequence of those messages seams to be the same that the frequence of automatic mail downloads from Thunderbird…
If you have any solution except Outlook or “no spam control”…
Thanks for your help.
Philippe.
Are you using SSL to securely check your mail? Won’t work with a virus scanner without some special external setup.
I use Thunderbird with Avast 4.6 on XP SP2 (although my Firewall is ZoneAlarm).
When I first installed Avast (a couple of months ago) I too experienced timeouts. I increased the timeout in Thunderbird from the default 45 seconds to 120 seconds and have had no timeouts since.
Hi,
I’m having the same problem of philou 
Regards
Do as alanrf suggests and increase the time out delay in your email program.
Does this only happen when sending email with attachments?
I have the timeout delay on 5min…
This not happen when sent emails…
I’m using the 4.6.639…
What mail are you trying to receive?
How have you got it set up in TB?
–lee
The email from my pop mail server…
Is this just a coincidence as I see your check for new messages is also every 5 mins…
I made mistake…
My timeout in Internet Mail provider is the default 120 seconds…
The email program is more likely to be the one timing out before Internet Mail provider, check that setting in your email program and increase it.
Did you want that I increase the minutes of checking new mail in Thunderbird?
I have used this settings in old versions of avast and didn’t had any problem…
No, it doesn’t matter how frequently you check your email, but the time before your email program decides the server is inactive and shows the time out message. It is in your email programs settings, this is an example of OE’s time out setting:
http://img.photobucket.com/albums/v325/for-dwr/timeoutoe.jpg
Find the equvilent in your email program and increase it.
There have been changes to the latest versions in the Internet Mail provider which may have had an impact on your email scanning (this is what is going on when the email program thinks the server is idle).
Do you have a lot of emails left on the server? I noticed that my access time increased dramatically when the mail client needed to sort through a lot of messages to find the new ones.
I can’t find that option in Thunderbird…
Yes, normally I left the messages on server, but if I delete them in Thunderbird, I set the Thunderbird to also delete in server…
You can see that config in the picture above…
This is really very annoying…
Try to fix this, please…
Are you sure it’s not a problem with the firewall settings?
I’ve tried right now and Thunderbird is working perfectly with 4.6.639 
I use the Outpost on 2 years and don’t had any problems…
I will make a clean install of avast and see what is happen…