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Thunderbird. When I boot up the program it gets hung up trying to load the Inbox file and then after about 20 minutes the program crashes and asks for a restart.

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I've tried Troubleshooting Mode but it only recommends "Clear Startup Cache" and when I click it to reboot the program Thunderbird stills fails to load the Inbox file and Troubleshooting Mode again recommends the same "Clear Startup Cache" as a remedy. Not sure what to do to get Inbox file loaded in program. BTW the program does download new emails to the Inbox file but program is unable to load the file. During Thunderbird program restart the message at the bottom left of Thunderbird window is "Summarizing files for Inbox" which after 20 minutes program crashes ans asks for a reboot. Any corrective action recommendations is appreciated.

Thanks, Mike

I've tried Troubleshooting Mode but it only recommends "Clear Startup Cache" and when I click it to reboot the program Thunderbird stills fails to load the Inbox file and Troubleshooting Mode again recommends the same "Clear Startup Cache" as a remedy. Not sure what to do to get Inbox file loaded in program. BTW the program does download new emails to the Inbox file but program is unable to load the file. During Thunderbird program restart the message at the bottom left of Thunderbird window is "Summarizing files for Inbox" which after 20 minutes program crashes ans asks for a reboot. Any corrective action recommendations is appreciated. Thanks, Mike

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How big (in GB) is the Inbox folder and how many messages does it contain? R-click > Properties > Number of messages & Size on disk

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Hi and Thanks for the prompt response. R-click > Properties > Number of messages & Size on disk: Both report "Unknown".

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Is the Inbox folder in a POP or an IMAP account? Anyhow, TB shut down navigate to your Thunderbird profile folder as described in this SUMO article https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_finding-your-profile-without-opening-thunderbird Note the size of the profile folder abcd1234.default-release (or some similar name) If POP account go to folder Mail > pop.xxx.xx and note the size of the Inbox file (the one without an extension) If IMAP account go to folder ImapMail > imap.xxx.xx and note the size of the INBOX file

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Thanks for the info for corrective actions. It is a POP3 server and I will try the directions above and will let you know the outcome.

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