Outbound_max_message_size, Outbound_virus, Outbound_virus_disposition – Google Message Security Batch Reference Guide User Manual
Page 62: Parent_org

Batch Command and Field Quick Summary
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Syntax and Example:
out_at_notify_on=< 0 | 1 | 2 | 3 | NULL ()>
modifyorg sales, out_at_notify_on=1
outbound_max_message_size
The outbound_max_message_size field holds the maximum size of attachments-
per-message that users in the organization can send.
Syntax and Example:
outbound_max_message_size=<1 - 300 (MB) | NULL (200M)>
modifyorg sales, outbound_max_message_size=200
outbound_virus
The outbound_virus field holds the activation status for outbound virus scanning.
Syntax and Example:
outbound_virus=<on/1 | off/0>
modifyorg sales, outbound_virus=1
outbound_virus_disposition
The outbound_virus_disposition field lists the disposition (bounce or redirect) of
an outbound email containing a virus.
Syntax and Example:
outbound_virus_disposition=<1 | 2>
modifyorg sales, outbound_virus_disposition=2
parent_org
The parent_org field lists the organization that is one level up in the org hierarchy.
Syntax and Example:
parent_org=<text string>
modifyorg sales, parent_org=Hugeisp