message transfer agent


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Message Transfer Agent

(messaging)
(MTA, Mail Transfer Agent) Any program responsible for delivering e-mail messages. Upon receiving a message from a Mail User Agent or another MTA, often by SMTP over the Internet, it stores it temporarily locally and analyses the recipients and delivers it to any local addressees and/or forwards it to other remote MTAs (routing) for delivery to remote recipients. In either case it may edit and/or add to the message headers.

The most widely used MTA for Unix is sendmail, which communicates using SMTP.

RFC 2821 (SMTP) expands MTA as "Mail Transfer Agent" though this is less common. Alternatives with "Transport" are also seen but less correct.

message transfer agent

The store and forward capability in a messaging system. See messaging system.
References in periodicals archive ?
com), a worldwide leader of email infrastructure products and services, today announced that AWeber Communications, an application service provider specializing in managing opt-in email follow-up and newsletter delivery, has incorporated the company's Ecelerity Message Transfer Agent (MTA) into its autoresponder system.
Built on IronPort's proprietary Message Transfer Agent (MTA), the IronPort C-Series delivers a wide variety of important email security functions such as Virus Filtering, preventative Outbreak Filters, Anti-Spam, Anti-Virus and Content Scanning.
com), a worldwide leader of email infrastructure products and services, today announced at INBOX East 2004 in Atlanta, Georgia, that the company is continuing its aggressive deployment of emerging email sender-based authentication methods by incorporating full support for DomainKeys into its Ecelerity Message Transfer Agent (MTA).
Additionally, latency impact on the message transfer agent (MTA) is negligible and, unlike many antispam products requiring minute-by-minute updates, the solution does not require a constant connection to the Internet.
Building on its reputation as a leader in email infrastructure solutions and the developer of Ecelerity, the world's fastest Message Transfer Agent (MTA) with throughput performance results of more than 1 million messages per hour, OmniTI has developed the Edge product line to stop spam, viruses, intrusions, and other threats that jeopardize today's mission-critical networks.
databases, directory services, message transfer agents, e-mail servers or web-servers.
These offerings are integrated in an OEM model within security vendors' products, such as unified threat management devices, managed security services, message transfer agents, and gateway and desktop software.
These offerings are integrated in an OEM model within security vendor's products, such as unified threat management devices, managed security services, message transfer agents, and gateway and desktop software.
LinuxCBT Mail Edition contains 40 hours of comprehensive, in depth training that focuses entirely on Linux Message Transfer Agents (MTAs) and associated mail components.

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