mail-directory-parser

mail-directory-parser is a variable defined in `mailalias.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
How to interpret the output of `mail-directory-function'.
Three types of values are possible:

- nil means to gather each line as one name
- regexp means first \(grouping\) in successive matches is name
- function called at beginning of buffer that returns an alist of names

You can customize this variable.