Google Message Security Batch Reference Guide - Manual (Page 354)

366
Syntax
nullsender_headertag_validation=< 1 - 336 | 0 | NULL >
Examples
When the field is given as input:
modifyorg Sales, nullsender_headertag_validation=120
When field is returned as output:
nullsender_headertag_validation 120
Description
When valid messages are sent out, digital signatures are added to the message’s
Received Header. The nullsender_headertag_validation field holds the number of
hours this digital signature is valid if the sent message is returned with a NDR or
bounce message.
All mail with a null sender lacking this signature or is received after the signature
expires, is subject to the nullsender_disposition field’s setting.
• 0, NULL -- The feature is disabled.
• 1- 336 -- Number of hours the NDR message is kept as a response for a sent
outbound message.
Default: 120 hours (5 days)
Field Type
Org-level
Authorization
• Read: Edit organizations, Outbound Server Management
• Write: Edit organizations, Outbound Server Management
Notes
This field is equivalent to the Administration Console’s organization’s Inbound
Spam Filters Null Sender Header Tag Validation hours field.