.msg or email with multiple pdf files

hello i have a weird job here where i will receive multiples .msg and with in them i will have close to 4k pdf files, to not have to go in one by one in each email is there a way of using the .msg files in a loop OR connect my email to knime so i can download all of the pdf files and then save on a folder? i been looking some of the options that knime has but i really dont know which one would really be good for this problem

thank you for your time