the one thing that email log ,or the event reminder or announcement for that matter , does not tell me is to what contact/member list, saved search, member group or member list that the mass email was sent to. It would be nice to see that in the summary of the entry from the email log. see attached example. if this was there then, investigating issue would not have been a problem. BTW the system is already getting data from the event to post in the "origin" field.

interestingly enough, the system does exact that and shows the contact/member list, saved search, member group or member list that the mass email will be sent to when you schedule the announcement/reminder email in the event. so the data is already there.