My client's email is constantly blocked from @GMail.com. Their domain has a "bad" reputation on google's postmaster tools.
I am looking for a service that can help fix this problem. I found one company called "www.rackaid.com
", but they only work with Linux servers, and my client's email is on Office365 (Exchange).
I have tried to help, but I am giving up, as I am not expert enough in this.
Can you recommend a service that can solve this problem?