mail transport agent การใช้

• Some of the best-known examples include the Linux kernel, the Apache web server; and the Sendmail mail transport agent.
• Greylisting is effective because many mass email tools used by spammers do not queue and reattempt mail delivery as is normal for a regular mail transport agent.
• It was never installed as a top-level domain in the Domain Name System, but parsed in the message routing logic of mail transport agents ( MTA ).
• The mail delivery agent is generally not started from the command line, but is usually invoked by mail delivery subsystems, such as a mail transport agent, or a mail retrieval agent.
• This comes from a part of the e-mail program called a " mail transport agent " that returns to the sender messages that could not be delivered because of a wrong address or a problem with the recipient's computer.
• The end of message is indicated by hitting ctrl + d ( and / or, dependent on the configuration settings, by writing a line consisting of a single'.'), causing the message to be passed asynchronously to the Mail transport agent.