When run as "pingmail check", searches a maildir for the most recent file
matching a regex pattern (such as a "From: " field matching the target person),
and if the most recent file is too old, sends an e-mail to the target person
When run as "pingmail check", searches a maildir for the most recent file
matching a regex pattern (such as a "From: " field matching the target person),
and if the most recent file is too old, sends an e-mail to the target person