Sending a quote fails with the error "Failed to attach te following files: Quote PDF". The error text is rendered in the body of the outgoing quote email, directly below a "Quote PDF Link" line, so the failure message is visible to the recipient. The quote PDF attachment is not included when the quote is sent, blocking the send action. The attachment step should succeed or surface a clearer failure reason instead of embedding the attachment error in the customer-facing email.
https://nox-telecom.eu1-salesbuildr.com/auth/profile/quotes/TJZax0A2LnpE3CrzCiIX
The quote email did go out. The PDF itself is about 9 MB, and emails can only attach files up to 7 MB, so the PDF was left off and replaced with a link. Improve the message and verify why the quote was so big.