Good Morning All

I have a customer who is currently using gmail as their email provider. I am trying to convince them to use their domain name as their email provider, stating that you have more control, it looks more professional etc.

However, I've received an email saying that gmail has the following advantages,

- it has one of the best spam filters

-Shared email servers have the challenge of ensuring their IP stay off the ISP blacklist due to spam. Gmail prevent this from happening.

Are these statements accurate? I've only once had a problem of a domain mistakenly being added to an ISP blacklist?

I greatly appreciate any help here, and thank you in advance.