Short Description: Set the low priority time range
Routes low-priority mail during the specified time. Without this setting in the notes.ini file, the Notes server routes low-priority mail only between 12 a.m. (midnight) and 6 a.m. Set the time range using the 24 hour format. You must specify a time range for this setting; Notes will not deliver low-priority mail if you specify only one specific time, such as 4 p.m.
For example: MailLowPriorityTime=21:00-23:00
Specifies that low-priority mail is routed from 9 p.m. to 11 p.m.
There is no kown UI setting for this notes.ini variable. But you can specify this setting in the notes.ini settings tab of the configuration settings document.
Domino 7 Performance Tuning Redbook
Redbook: Domino 7 Performance Tuning