message delivery agent造句

For this purpose the MTA transfers the message to the message handling service component of the message delivery agent.
For recipients hosted locally, the final delivery of email to a recipient mailbox is the task of a message delivery agent ( MDA ).
Many Mail Handling Software products bundle multiple message delivery agents with the message transfer agent component, providing for site customization of the specifics of mail delivery to a user.
It's difficult to find message delivery agent in a sentence. 用message delivery agent造句挺难的