Eudora

File Format
Name	Eudora
Ontology	Electronic File Formats E-Mail, newsgroups, and forums Eudora
Extension(s)	.mbx, .toc
Released	1988

Eudora was a popular mail program in the 1990s.

Eudora uses the mbox format to store messages (an entire mailbox/folder in one file, with a .mbx extension), dealing with the infamous "From" line parsing problem by using a binary file known as a Table of Contents to index the offsets of each message in the mailbox file.

Format information

• Eudora .toc File Structure and Utilities

Metaformat files

• Synalysis grammar file (for Hexinator / Synalize It!; more details)

Software

• Classic Eudora (Internet Archive)
• Eudora OSE (Open Source Edition)

Other links

• [[Wikipedia:Eudora (email client)|Wikipedia article]
• Really Old Eudora Email, Preservation, Parsing Woes, and Hidden Bits