Mail Transfer Agent

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Mail Transfer Agent

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Engate solves this problem by differentiating between legitimate and non legitimate mail transfer agents (MTAs).
Internet email is based on SMTP, which describes the interaction between Mail Transfer Agents (MTAs), which are responsible for carrying messages to and from hosts on the networks, and Mail User Agents (MUAs), which are simply the email clients, such as Eudora or Outlook, that people use to compose and send email.
Commtouch([R]) (Nasdaq:CTCH) today announced the availability of its new Milter plug-in, a cross-platform, multi-service Sendmail plug-in designed to enable straightforward integration of Commtouch messaging security filters with Sendmail and Postfix mail transfer agents (MTAs).
Sendmail and Postfix are two of the most common mail transfer agents in use today.
CertifiedEmail has been implemented by leading ISPs, all leading email marketing service providers (ESPs), and a vast network of OEMs including providers of Mail Transfer Agents (MTAs), edge devices, User Interface (UI) suites, anti-spam and anti-phishing filters, and other email security related products.
Formed in November 2002 to fight spam while protecting the delivery of legitimate email, the ESPC boasts a membership comprising many of the brightest and most innovative minds in the email industry, including Email Service Providers, Mail Transfer Agents, Internet Service Providers, application and solution developers, and deliverability solutions providers.
Most enterprises, service providers and independent software vendors (ISVs) develop custom software for dynamic content, message tracking and infrastructure administration and rely on freeware-based Mail Transfer Agents (MTA) for message delivery.
The Linux and GNU software system provides two classes of mail servers: back-end mail transfer agents and front-end user interfaces.
Sendmail Multi Switch coordinates the activities of the variety of sendmail Mail Transfer Agents (MTAs) that reside at separate locations and play different roles within an enterprise, such as extranet interfaces, policy implementation, departmental mail integration and message hosting.
Developed by IBM researcher Wietse Venema, Secure Mailer is far more robust and flexible than similar messaging components, called Mail Transfer Agents (MTA).