Syntax, Examples, Description – Google Message Security Batch Reference Guide User Manual
Page 439: Field type, Authorization, Notes

Batch User Fields
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TS1
The TS1 field holds the most recent timestamp for a good email message to a
provisional user.
This field is applicable to the Google Message Security, Google Message
Discovery, and Google Message Filtering products only.
Syntax
TS1= < time in UNIX seconds >
Examples
TS1 1145962000
Description
Timestamp of the most recent good email message was received for a provisional
user.
Field Type
Provisional user management
Authorization
•
Read: Add Users
•
Write: Read-only for administrators
Notes
Used with SmartCreate, newly added users are unconfirmed provisional users.
These users are promoted to regular user after verified as associated with
someone in your org by receiving 3 legitimate emails within a week. Or the user
can be blocked or unblocked from being added to the Message Security service.
Once the email criteria is met, the user is added to service. Otherwise the user is
deleted.