holdexquota keywords control the handling of messages
addressed to VMS MAIL mailbox users (OpenVMS), Berkeley mailbox users
(UNIX), and PMDF popstore or PMDF MessageStore users (all platforms)
who have exceeded their disk quotas.
exquota tells PMDF to ignore user quota limits and deliver
messages even when users are over quota (except on the UNIX l channel,
exquota is equivalent to
either keyword results in holding messages for over quota users). In
particular, on OpenVMS for the l channel, PMDF uses the EXQUOTA
exquota is used to perform the delivery to
over quota users.
noexquota tells PMDF to return messages
addressed to over quota users to the message's sender.
holdexquota tells PMDF to hold messages to over quota
users; such messages will remain in the PMDF queue until they can
either be delivered or they time out and are returned to their sender
by the message return job. The default is
on UNIX for the l channel is equivalent to
Use of the default is strongly recommended; bouncing mail on
the basis of quota is usually not a good idea.
On OpenVMS, besides the l, msgstore, and popstore channels, these keywords technically also affect the other channels that deliver via VMS MAIL: the d channel and any mail_ channels. However, the keywords are typically not useful on d or mail_ channels since such channels typically connect to a remote transport agent of some kind and enabled privileges are not transferred.