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Thunderbird only offers to create another account in the format "Unix Mailspool (Movemail)".

What is this format? It looks different from "Maildir".

rubo77
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1 Answers1

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I found some hints:

https://wiki.mozilla.org/Thunderbird:Pluggable_Mail_Stores#Current_Mail_Store

Currently, local mailboxes and offline news& IMAP stores use the berkeley mailbox format, a flat file in the Mbox family

and

http://whatis.techtarget.com/fileformat/MBOX-Mailbox-file-Berkeley-Unix

MBOX File Format

Mailbox file (Berkeley Unix)

MBOX is a file extension for a text file used to organize and store e-mail messages. MBOX stands for MailBOX.

The MBOX file is the most common format for storing email messages on a hard drive. All the messages for each mailbox are stored as a single, long, text file in a string of concatenated e-mail messages, starting with the “From” header of the message. MBOX files were used predominantly on Unix. MBOX files are still used with several current e-mail clients, including Mozilla Thunderbird, Microsoft Entourage and Qualcomm Eudora.

If you look in

preference -> advanced -> general -> config editor

and search for msgstore you find

mail.serverDefaultStoreContractID = "@mozilla.org/msgstore/berekeleystore;1″
rubo77
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