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“Unable to open the summary file for INBOX. Perhaps there was an error on disk, or the full path is too long.”error

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Cannot activate thunderbird account.

Error Message Saying “Unable to open the summary file for INBOX. Perhaps there was an error on disk, or the full path is too long.”error

Cannot activate thunderbird account. Error Message Saying “Unable to open the summary file for INBOX. Perhaps there was an error on disk, or the full path is too long.”error

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Did you compact your email folder recently?

Create a new profile as a test to check if your current profile is causing the problems.

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem