Read-write. The size, in megabytes, at which the user's mail database issues a warning that it is getting too large.
Long
To get: long& = notesRegistration .MailQuotaWarningThreshold
To set: notesRegistration . MailQuotaWarningThreshold = long&
Optionally set this property before calling RegisterNewUser.
A value of 0 (default) sets no warning threshold.
MailQuotaWarningThreshold property in Java™ Registration class