Postmark offers Free Trial, but Mandrill does not.
Postmark is designed for Individuals, Freelancers, Medium Business and Small Business.
Mandrill is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing details for both Postmark and Mandrill are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to Postmark includes SMTP, Campaigner and Moosend.
Some top alternatives to Mandrill includes SMTP, Campaigner and Moosend.