Toshiba E-STUDIO190F Service Manual

Also see for e-STUDIO190F: Operator's manual Quick guide

Contents

2709.6. SMTP (Simple Mail Transfer Protocol)The objective of Simple Mail Transfer Protocol (SMTP) is to transfer mail reliably and efficiently.SMTP is independent of the particular transmission subsystem and requires only a reliable ordered datastream channel.The SMTP design is based on the following model of communication: as the result of a user mail request,the sender-SMTP establishes a two-way transmission channel to a receiver-SMTP. The receiver-SMTPmay be either the ultimate destination or an intermediate. SMTP commands are generated by the sender-SMTP and sent to the receiver-SMTP. SMTP replies are sent from the receiver-SMTP to the sender-SMTPin response to the commands. Once the transmission channel is established, the SMTP-sender sends aMAIL command indicating the sender of the mail. If the SMTP-receiver can accept mail it responds with anOK reply.The SMTP-sender then sends a RCPT command identifying a recipient of the mail. If the SMTP-receivercan accept mail for that recipient it responds with an OK reply, if not, it responds with a reply rejecting thatrecipient (but not the whole mail transaction). The SMTP-sender and SMTP-receiver may negotiate severalrecipients. When the recipients have been negotiated the SMTP-sender sends the mail data, terminatingwith a special sequence. If the SMTP-receiver successfully processes the mail data it responds with an OKreply. The dialog is purposely lock-step, one-at-a-time. For more detail, please refer to the URL http://www.imc.org/rfc8219.6.1. Mail Header SampleSMTP ServerPCPC DNS Server POP ServerInternetSMTP POP 3Internet Mail Sending and ReceivingReceived: from nwr35by labo.pcc.com (8.9.3/3.7W-RDMG) with SMTP id PAA09157for ; Sun, dd Mmm yyyy 15:04:48 +0900 (JST)Date: Sun, dd Mmm yyyy 15:04:48 +0900 (JST)Message-Id: <199908200604.PAA09157@mlsv2.labo.pcc.com>Mime-Version: 1.0X-Mailer: Internet FAX, ToshibaFrom: "Toshiba" Subject: IMAGE from Internet FAXTo: freeport@labo.pcc.comContent-Type: multipart/mixed; boundary="+-+-+-Toshiba-+-+-+"X-UIDL: 8f32e4b1d691fdfc28daa812d913f572Delivery routeMessage IDContent-Type