if the ‘Ignore send fail’ property of the EmailSender component is set to ‘false’ (by default), the whole graph execution will fail in case an email sending fails. If it is set to ‘true’, the graph execution will continue despite a failed email sending.
For instance, let’s assume that a graph is designed to send out 5 different emails, each one with a different attachment. The second email carries an oversized attachment so the email sending will fail. If ‘Ignore send fail = false’, Clover will send out the first email and then the graph execution will fail after attempting to send the second one (without success). If ‘Ignore send fail = true’, Clover will send out the first email, then it will attempt to send the second one (but without success). However, Clover will go on to send the third, fourth and fifth email and the graph will finish successfully.
The explanation in our documentation appears to be a bit misleading so I will have this corrected.