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Thunderbird Slow When Checking/Downloading Email Fix

Posted on Wednesday, June 8, 2011 @ 10:16:42 PM CDT by David Yee [] [read 3681 times]

 
Tips: Windows-world
Lately Thunderbird (I'm running version 3.1.10) has been so darn slow that I've started to look for alternatives email clients. In the end though, I didn't feel like wanting to transfer all the reminders and email to a new program, so I thought I try some more to fix the problem.

My main problem is that whenever Thunderbird is checking email, CPU usage jumps and any Thunderbird open window because extremely sluggish or even unresponsive. I can't click an open any email and this intermittent slowness can last for well over 10 minutes. It's completely unacceptable and just messes up your productivity.

I've tried numerous things- compact the folders, delete the folder index files and let Thunderbird recreate them, turn off global search- but nothing worked. But then I thought- maybe it's the email servers themselves. I don't have Verizon FiOS so I went into my router and changed some QOS settings and raised priorities for connections to outbound port 25 (SMTP), 110 (POP3) and 995 (Secure POP3). This seemed to helped a little in terms of slightly shortening the terrible slowdown, but that was it.

Then I thought what if I went into the account where I have the most email and move/delete all the old email? My Yahoo email account has well over thirty-five thousand messages. So I went into my web browser, went to mail.yahoo.com and deleted or moved all of them to another folder. I ran into these LaunchEmptyResponse problems trying to delete/move so many emails at once in Yahoo Mail, but eventually they went away and I was able to successfully clear out the entire inbox.

The result? No more painful slow performance for Thunderbird- for now. So if you have a ton of email and are getting frustrated by Thunderbird slowing down, try going to your webmail for your various accounts and clean things up. It could be too that just using Yahoo POP3 with a ton of messages was the culprit.

Now if I could only find a fix for this duplicate email problem for Hotmail account for Thunderbird....



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Thunderbird Slow When Checking/Downloading Email Fix Rating: 1.7/5 (15 votes cast)

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