SendQueuedEmail skipping invalid addresses
SendQueuedEmail skipping invalid addresses

Essentially we whitelist this kind of error to be logged with the right level, and go on sending to the other addresses. Previous behavior was to go into an apparently infinite loop (more than 12 hours at least), first of the activity inside the workflow and then of the workflow failing

jhroot/elife-bot,gnott/elife-bot,gnott/elife-bot,gnott/elife-bot,jhroot/elife-bot,jhroot/elife-bot