At the end of the day, our IBM Iseries (Mini-Mainframe) creates customer invoice document emails and dumps them to SmarterMail to deliver. The emails have a FROM: address that is the customer's account rep's email address.
Is there a SmarterMail API, or http web call that I can perform from our Iseries to SmarterMail to validated that the FROM: address is a valid SmarterMail email account? We have issues of staff changes, where SmarterMail accounts are deleted, but not updated in our Iseries. I would like to print an invalid email list at the end of the day.
I would prefer not to write a socket program to talk to SmarterMail and perform the validation.