The email client Thunderbird does not necessarily retrieve messages from all of your mail accounts at startup. By default the first mail account will be checked on startup and all mail accounts will be checked every ten minutes. The following user.js tweak changes this behavior in the way that Thunderbird retrieves mail from all accounts at startup as well.
All you need to do is locate the file user.js which should be in your profiles folder. The user.js file does not exist by default and you might need to create it my right-clicking and choosing new, text document and naming it user.js. Once this is done you are ready to add the following lines of code to it.
user_pref(”mail.check_all_imap_folders_for_new”, true);
user_pref(”mail.check_all_pop_folders_for_new”, true);
Once this is done restart thunderbird and mail from all accounts should be automatically received.
http://www.ghacks.net/2006/11/05/how-to-get-mail-from-all-thunderbird-accounts-at-once/#more-893
All you need to do is locate the file user.js which should be in your profiles folder. The user.js file does not exist by default and you might need to create it my right-clicking and choosing new, text document and naming it user.js. Once this is done you are ready to add the following lines of code to it.
user_pref(”mail.check_all_imap_folders_for_new”, true);
user_pref(”mail.check_all_pop_folders_for_new”, true);
Once this is done restart thunderbird and mail from all accounts should be automatically received.
http://www.ghacks.net/2006/11/05/how-to-get-mail-from-all-thunderbird-accounts-at-once/#more-893