mh-scan-sent-to-me-sender-regexp

mh-scan-sent-to-me-sender-regexp is a variable defined in `mh-scan.el'.
Its value is

"^ *[0-9]+.\\([bct]\\).....[ ]*\\(..................\\)"

Documentation:
This regular expression matches messages sent to us.

Note that the default setting of `mh-folder-font-lock-keywords'
expects this expression to contain at least two parenthesized
expressions. The first should match the fontification hint (see
`mh-scan-format-nmh') and the second should match the user name
as in the default of

^ *[0-9]+.\\([bct]\\).....[ ]*\\(..................\\)

If this regular expression is not correct, the notation hints
will not be highlighted with the face
`mh-mh-folder-sent-to-me-hint' and the sender will not be
highlighted with the face `mh-folder-sent-to-me-sender'.