OmniMessaging Functional Description 8.3

OmniMessaging Functional Description
07/22/04 Opsol Integrators Inc. Confidential and Proprietary Page 38 of 68
The Message Aging Server (MAS) uses this value to ascertain when messages
can be deleted out of mailboxes.
It is possible to set this limit to indicate that messages should be retained
indefinitely.
11.2.5 Max Local Message Size
Max Local Message Size is configurable at the following levels which are listed
in order of usage, i.e. if the Mailbox Root level value is specified then it is used,
otherwise the Service Package level value is used, and so on:-
• Mailbox Root
• Service Package
• System
Within an IMAP session, if an Append or Copy command results in an attempt
to append or copy a message that exceeds the local message size for the
target mailbox, then the mail will not be delivered and a NO response will be
returned indicating to the user that the message size limit has been exceeded.
If a mail arrives via an SMTP session, which exceeds the message size limit for
the target mailbox, then the mail will not be delivered to the recipient, and
instead an NDR “Message Too Large” mail is returned to the sender.
It is possible to set the limits at each level to indicate no limit.
N.B. the Max Local Message Size at system level is also used by the MTA to
check the size of incoming mail destined for local addresses. The MTA will
reject messages exceeding this value during an SMTP session.
11.2.6 Max Remote Message Size
The MTA uses the Max Remote Message Size limit to check the size of
incoming mail destined for remote recipients. If the incoming mail is too large,
the mail is rejected within the SMTP session with an appropriate response.
11.2.7 Max Mailboxes Per User
Creation of mailboxes during an IMAP session for a particular user is prohibited
once the user has reached the system limit. The user can start creating
mailboxes again once one or more mailboxes have been deleted.
The total of all mailboxes below the users root mailbox is compared against the
MAX_MBOX_PER_USER system parameter.
11.2.8 Max Subscriptions Per User
Addition of new subscriptions via the IMAP SUBSCRIBE command during an
IMAP session for a particular user is prohibited once the user has reached the
system limit (MAX_SUBSCRIPTION_PER_USER system parameter). The user
can start adding more subscriptions again once one or more subscriptions have
been deleted via the IMAP UNSUBSCRIBE command.