Technical data

Table 6–4: SMTP Client Commands
Command
Description
HELLO Identifies the originating host to the server
host.Usethe/DOMAINqualifiertoprovide
thenameoftheoriginatinghost.
MAIL FROM:<reverse-path>
Identifies the address at which
undeliverable mail should be returned.
Usually is the originating host.
RCPT TO:<forward-path> Address of the intended receiver. If sending
mail to multiple recipients, use one RCPT
TO command for each recipient.
DATA Signals the end of the RCPT TO commands
andtellstherecipienttopreparetoreceive
the message.
QUIT Signals the end of the RCPT TO commands
andtellstherecipienttopreparetoreceive
the message.
These commands are described in detail in RFC 821.
The configuration procedure TCPIP$CONFIG sets up the SMTP queues for you.
For more information about configuring SMTP, refer to the Compaq TCP/IP
Services for OpenVMS Management guide.
6.2.2 Understanding How SMTP Translates OpenVMS Mail Headers
The OpenVMS Mail utility contains up to four headers in a mail message:
•
From:
•
To:
•
Subj:
•
CC:
SMTP supports a large set of mail headers, including:
•
Resent-Reply-To:
•
Resent-From:
•
Reply-To:
•
Resent-Sender:
•
Sender:
•
ReturnPath:
When it composes an OpenVMS Mail message, SMTP uses the text from the first
SMTPheaderinthelistthatitfindsfortheOpenVMSMail
From:
header.
6.2.3 Understanding SMTP Addresses
SMTP addresses are of the form [e-mail],wheredomain.name is a
domain for which there is a DNS Mail Exchange (MX) record. Mail Exchange
records tell SMTP where to route the mail for the domain.
6.3 IMAP
IMAP is the Internet Message Access Protocol. The IMAP Server allows users to
access their OpenVMS Mail mailboxes by clients communicating with the IMAP4
6–6 Mail Services