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- === NOSview [301]
- pop
- ===
-
- [N.B. This is different from the 'popmail' command].
-
- The Post Office Protocol POP2 is a mail protocol designed for use
- in networks containing hosts that are normally turned off when
- they are not in use. In this environment it is not possible for
- an SMTP mail server to deliver mail to these hosts because they
- are not always available.
-
- The solution to this problem is to designate a mailbox server
- that is available to the network at all times and can accept SMTP
- mail for other hosts. When a host comes on-line it uses POP to
- access the mail in its mailbox(es) on the mailbox server.
-
- The advantage of using a POP server at an area mail gateway is
- that when mail arrives at the gateway for a station that may not
- be available, the gateway does not have to waste time trying to
- establish a connection with that station. Instead it accepts the
- mail and places it in the addressee's mailbox, just as if the
- addressee were a normal user on the gateway system (that is, this
- is the same thing that is done with AX.25 BBSs).
-
- The POP server requires one data file called /popusers.
-
- The POP2 protocol is very simple, with minimal error handling.
- When an error is encountered, an error message is generated and
- then the connection is terminated. You then have to re-establish
- a connection to continue.
-
- _________________________________________________________________
- pop kick
- _________________________________________________________________
- Kick the local POP client, to get mail from the server.
-
-
- _________________________________________________________________
- pop mailbox [<name>]
- _________________________________________________________________
- Display or set the name of the local mailbox that is to hold all
- of the mail received from the POP server.
-
- Note that this mailbox <name>, like all DOS filenames, is limited
- to eight characters. Also, <name> does NOT include a DOS path;
- all mail is placed in /spool/mail, along with other mail placed
- there by SMTP.
-
- >> Example: pop mailbox sysop
-
- The POP client does not write directly to the user's mailbox.
- Instead it creates a file mbox.pop in the current directory and
- places all of the mail it receives in that file. On completion
- it appends the contents of the file to the end of the mailbox
- when all mail has been collected from the mailbox server.
-
- Normally this file is deleted after its contents have been
- transferred to the mailbox. However, if the POP client is unable
- to access the mailbox (for example, if it is locked by SMTP),
- then mbox.pop will remain in existence. Any new mail gathered by
- the POP client will be appended to the end of mbox.pop. Then
- eventually when the mailbox becomes available the contents of
- MBOX.POP will be transferred to it.
-
-
- _________________________________________________________________
- pop mailhost [<host>]
- _________________________________________________________________
- Display or set the the POP server host.
-
- >> Example: pop mailhost ns9mai
-
-
- _________________________________________________________________
- pop quiet [on|off] Default: off
- _________________________________________________________________
- Display or set the POP quiet flag.
-
- This flag determines whether the bell sounds when the system
- announces that incoming mail has arrived. When quiet is set to
- 'off' you hear the bell.
-
- >> Example: pop quiet on
-
-
- _________________________________________________________________
- pop timer [<seconds>] Default: 0
- _________________________________________________________________
- Display or set the POP polling interval. The local client will
- then poll the server for mail at the specified interval.
-
- >> Example: pop timer 600
-
-
- _________________________________________________________________
- pop userdata [<name> <password>]
- _________________________________________________________________
- Display or set the user data required by the POP server to
- validate the client's mail request.
-
- Note that <name> and <password> are case sensitive.
-
- When only 'pop userdata' is entered to show the values, only the
- <name> is shown.
-
- >> Example: pop userdata Mary POPpins [..... groan!!!]
-