maxbulk mailer

Hi guys, having no chance with MaxBulk Mailer support, i try here hoping someone will help me out. ------- On MaxBulk mailer (Mac os) I have a list of 360 emails and 3 sending domains: • DomaineA.org • DomaineB.info • DomaineC.net Each domain has 3 email addresses (9 in total), for...