Mail updating cache directory

See also Profile folder - Firefox and Profile folder - Sea Monkey.

Thunderbird stores all personal data such as messages, address books and configuration settings in an OS folder called the profile.

Try setting the time interval to check for new messages to 15 minutes: Change How Often Postbox Checks For New Mail 2) You have too many devices (computers and phones) checking for mail on the server at the same time, and the server isn't responding. 3) You could have too many connections to the server.

Try lowering the number by following the instructions in this help article: Too Many Connections to the IMAP Server​ 4) Finally, try deleting your caches folder: How to Delete the Postbox Caches Directory Please remember to restart Postbox after performing any changes.

However, the profile switcher extension will let you switch profiles.

Profile folders default to a standard location but are named randomly for additional security.

Thunderbird has several new features which are enabled by default that increase the size of a profile.

The easiest way to find your profile is to click on the "Show Folder" button in Help -click on the "Show Folder" button.Changing the default settings has no affect on existing accounts, it only affects accounts that you create after modifying those settings.This article is about Thunderbird's profile folder.You can also use the Profile Manager to create a profile wherever you want (but don't create it in the Thunderbird program directory) or to delete or rename one.It is a good idea to periodically backup your profile to a safe location.

The App Data folder is folder is a hidden folder; to show hidden folders, open a Windows Explorer window and choose "Organize → Folder and Search Options → Folder Options → View (tab) → Show hidden files and folders".