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Thunderbird slow to delete emails

User Help for Mozilla Thunderbird
OldGrantonian
 
Posts: 80
Joined: May 12th, 2008, 11:02 pm
Location: Highlands

Post Posted September 22nd, 2019, 3:21 am

I have TB 60.9 32-bit, with Win 10 Pro

In an account with 5,000 emails in Inbox, it takes 16 seconds to delete 10 emails. Larger amounts seem to be in proportion.

I've tried the following procedure every few weeks, in case a recent TB update will fix the problem.

1. Back up the profile

2. Navigate to:

C:\Users\<Windows user name>\AppData\Roaming\Thunderbird\Profiles\<Profile name>\

3. Delete Inbox.msf

(Actually, rename to Inbox.msf$ for fast rollback)

I think there's an improvement for maybe up to 1 minute. After that, it's back to the usual long delay.

Thanks.

DanRaisch
Moderator

User avatar
 
Posts: 122363
Joined: September 23rd, 2004, 8:57 pm
Location: Somewhere on the right coast

Post Posted September 22nd, 2019, 4:21 am

How is the account set up in Thunderbird, as POP or IMAP? Find out using menu path Tools->Account Settings->Server Settings->Server Type at the top right of the dialogue.

OldGrantonian
 
Posts: 80
Joined: May 12th, 2008, 11:02 pm
Location: Highlands

Post Posted September 22nd, 2019, 4:51 am

DanRaisch wrote:How is the account set up in Thunderbird, as POP or IMAP?


Type is IMAP

Thanks.

tomdkat
 
Posts: 1350
Joined: October 14th, 2003, 7:53 am

Post Posted September 23rd, 2019, 8:07 am

I experienced this on a friend's computer. It turned out to be Windows Defender. If you haven't done so already, try adding the Thunderbird profile folder to the Windows Defender exclusion list. See if that helps.

Peace...

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