Client did not receive the invoice email
Check the activity log
Open the invoice and look at Activity. "Delivered" means the client's mail server accepted the email; "Bounced" means it was rejected, usually because of a typo in the address.
Common causes
- The email went to spam or a "Promotions" tab. Ask the client to search for "quillstack".
- The address in the client profile has a typo. Fix it and click Resend.
- The client's company filters external links. Send the PDF instead with More → Download PDF.
Send from your own domain
On Solo and Studio plans you can send invoice emails from your own domain, such as billing@yourstudio.com. Add the SPF and DKIM records shown in Settings → Email → Custom domain. Verification usually completes within an hour of the DNS change.
Still stuck
Contact support with the invoice number; we can check delivery logs for the last 30 days.