A Zope 3 library for sending notifications and newsletters
Singing is a Zope 3 library for sending notifications and newsletters.
You can find the development version of collective.singing in the GitHub repository.
Added keep_sent_messages flag on channels which, if set to False (the default), suppresses the behavior which would otherwise put sent messages into a persistent queue.
If sent messages are dropped (as per this flag), an entry is instead written to the log to keep a minimal record of events. [malthe]