Hi when sending an email from original email address if you were to enter the recipient email address incorrectly you would be notified and are able to re-submit the email to the correct address rectifying any spelling errors. However on direct emails using kashflow this isn't possible and we are unaware of any returned emails. Resulting in unpaid invoices and responses from quotes that have been sent.
I can't believe this has not been fixed yet. Not knowing about wrong customer email addresses has been a recurring problem for years. Surely this is basic. Like it happens when you send a n email in the real world every time.