In Business Process Server, task completion via e-mail option can be enabled for any human workstep. However, BP Server uses fixed e-mail content and format to pass the dataslots and other process information, and also expects the data in the "reply" e-mail in a fixed format. This causes severe limitations for applications that heavily depend on the task completion via e-mail.
Note: E-mail Templates are supported only for the completion of work items or to assign the work items from available pool.