I do not respond to unsolicited emails offering commercial services, or a “free assessment” related to your commercial services.
Whatever you are offering, I am not interested. I will flag your message as spam, and delete it. I will not ever respond to you.
If you email me offering to improve my web site, optimise it for search engines, “improve” it, or anything else, I flag it as spam, and delete it. I will not ever respond to you.
That may filter back into the spam protection services I use and have an adverse impact on your ability to reach other website owners.