Unable to process from lines (envelope), change recognition modes

When using DomainPOP or MultiPOP to retrieve mail, an error displays: 'Unable to process from lines (envelope), change recognition modes.'

This error, which is on the ISP's server, indicates that the user's mail spool is corrupted. The first line, which should be a 'From' or MMDF separator is not recognizable. This error occurs when you are collecting from a QPOP server and your mailbox has become corrupt. You need to contact your ISP or mail host and ask them to edit the mail spool file and check the first line. They might know what to look for but if they do not they can access this website:

Eudora Website

An alternative solution for the ISP is to upgrade to the latest version of QPOP.