Hello There,@twisted1919 In amazon, I have three Region (US East (N. Virginia), US West(Oregon), EU(Ireland)). In this Region, I verify the same domain and email in three Region, And Created SMTP Credentials for every Region. And also successfully active in Mailwizz account. Domain and Email are verified in all Region. When I starting campaigns only one SMTP can send mail, But I want to send from all Region. How can I send mail from multiple Region?