4. SPF is an email authentication protocol designed to verify that each email originates from the Internet domain from which it claims to come based on the sender's IP address. Other companies sharing the ed10.net domain. Are there any big spammers in here? Three specific IP addresses have been tracked sending email from this domain.
5. IP level reports This is drilling down to the report on the specific IP address. A lot of blacklists listed here would be a concern.
6. IP level reports Higher than the average deliverability rate across all domains – currently 72%