I think that should work. However, it's unclear whether you can send 7k in a day without paying. The email providers have monthly rate limit, day rate and hour rate too.
Why do you choose this over your host email? I am doing it for a newsletter. I will use it to send out letter than turn it off until the following month.
Why do you choose this over your host email? I am doing it for a newsletter. I will use it to send out letter than turn it off until the following month.
Also this is good for overcoming host limits. Your host (most host) allow for only X per hour. This allows you to send a lot more than your average hosting provider.
Go to Email Options and put an address into "Default Email Address" field. Make sure to use an address with your domain name (e.g. community@www.domain.com). According to your screenshot, you used www.domain.com, I suggest you switching to use domain.com only though.