Do out-of-office responses reflect in the analytics
Out-of-office responses do not show in the analytics as they are not considered actual replies, which is why they do not trigger the reply event.
How to add them back into the campaign
You would have to remove the lead and add back to send the whole campaign all over
How to stop them from appearing in the Unibox
If you want them to stop appearing in the Unibox, kindly disable "Show auto-replies in Unibox" in settings.
What happens to Out of office leads when I don't have "Stop on auto-reply" enabled?
If the “Stop on auto-reply” has not been enabled, the lead status will remain Lead.
The campaign will continue to send follow-up emails as if the auto-reply never happened.