A Neighbourly Hello - Unsolicted advice spam

This is one of the more unusual examples of a web design agency trying to get a new client onboard. The web design agency contacted my client pointing out what they saw as serious errors in the Client's website. The Client forwarded the initial e-mail to me.

Please find below the interchange of e-mails between me and this person. I have thought it prudent to redact any identifying portions of the e-mail for legal reasons