Tagthrottling

Number three of seven in our occasional series on why ESPs need, or don’t need, lots of IP addresses to send mail properly. I need many IP addresses so that I can work around ISP throttling limits Why this is right: There are ISPs that limit the number of emails that can be sent from a particular IP address in a given time period to quite a low level, as low as 1000 emails per hour per IP address...