Messages Over 4MB

Dear all,

I have set schedules that mail size over 4MB will send at 12:00 (midnight)

(In Server Documents > Router/SMTP > Restrictions > Send all messages as low priority if message size I between 4096 KB and 15360KB)

(In Server Documents > Router/SMTP > Transfer Controls > Low priority mail routing time range : 12:00AM ~ 06:00 AM, Maximum hop count : 25, Initial transfer retry interval : 15 minutes, Expired message purge interval : 15 minutes)

But sometimes some mails (which is over 4MB) cannot be send out during midnight, it queues in the mail.box, why this happen ? Is there any logs to trace? I haven’t find it in Notes Log. How can I send this mails at once ? And how can I prevent this happen ?

Also, people send such mail (over 4MB) with “Return Receipts” but the receipt message is by the Administrator (which is few minutes later), why this happen ? how can it change to the recipients?

Many Thanks,

Michael