Daily Message Limit
(optional) Defines the total number of messages that can be distributed, to the mailing list in one day.
This features is generally used as a last resort to prevent mail loops from going out of control. A mail loop occurs mail sent to the mailing list members encounters a badly configured email server,
and the email server sends a message back to the mailing list.
Lyris has many features to prevent mail loops from happening, so the Daily Message Limit will, in practice, never become an issue. However, if, for some reason, a message loop were to
occur, the Daily Message Limit would shut off the mail loop after a certain limit. Note that Lyris automatically blocks duplicate posts, and unless this feature is explicitly disabled, it is very
effective at stopping mail loops before they occur.