It's now May 2022 and we are experiencing the same issue and unfortunately, it's really inconsistent. We've never had an issue with emailing our invoices through QBO before but now every email seems to "bounce". The frustrating thing is sometimes when my end says there's been a delivery issue the client is actually receiving them and I'm just not getting the copy. Other times it seems I get them and the client misses them. And there is no way to tell what has happened in each instance so I'm forced to watch for if the invoice updates to say it's been viewed or to contact the client directly to query if they received their invoice. Both options are time consuming and unprofessional.
I've read in other threads that the issue is under investigation but would like an update on how close the fix is.
