If the receiver MUA does not have direct access to the mail spool file, use Popper to access the mail spool on the local host. z/OS® Popper is used when a POP3 server is needed.
Syntax
>>-popper--+- - b--<directory name>-+-------------------------->< +- - d-------------------+ +- - n--<message count>--+ +- - s-------------------+ +- - t--<file name>------+ +- - T--<timeout>--------+ '- - u-------------------'
Parameters
The following command-line options can be used when you are invoking Popper.
- -b <directory name>
- Specifies the name of the directory in which bulletins are found.
If not specified, /usr/mail/bulletins is used
as the default.Restrictions:
- If the bulletins file is a symbolic link, it must have an owning UID or GID that matches the EUID or EGID that is assigned to Popper.
- If the bulletins file is a hard link or the target of a hard link, users that are outside the owner or group of the directory in which the bulletins file is stored cannot have write access to the directory. Additionally, write access to the bulletins file must be limited to the owning UID or group, for example, --w--w----permissions.
- -d
- Requests more debugging messages be turned on.
- -n <message count>
- Specifies the number of old bulletins to be delivered to new users. If not specified, no bulletins are delivered.
- -s
- Requests statistics logging be turned on.
- -t <file name>
- Specifies a trace file for all message logging. If not specified, messages are logged via the syslog facility.
- -T <timeout>
- Specifies the time, in seconds, before an idle POP3 connection is terminated. RFC 1939 specifies a minimum timeout of 600 seconds, but in practice such a long timeout does not work well. (When a connection gets aborted, the user is locked out of their mailbox for the timeout period.) If not specified, 120 seconds is used as the default timeout period.
- -u
- Requests that the user mailbox be updated on abort. RFC 1939 specifies that mailboxes should not be updated (that is, no messages should be deleted) if a connection is aborted abnormally. This option forces an update to occur despite the aborted connection. If not specified, no update occurs on aborted connections.