Why do I see many IP addresses in the report?

GlockApps shows the analytics for the IP addresses of the SMTP server that sent the message to the seed list. If you sent the message using an email service provider (ESP), the report shows the IP addresses used by the ESP’s SMTP server. As a rule, ESPs use shared IP pools, which include many IP addresses. The IPs are rotated from message to message, which means the same message is sent to different email addresses from different IP addresses.