I am new to the presto service but have read the forums extensively.  Comments and questions:

1.  It would be great if email senders or account managers could get a confirmation or report about successfully delivered messages.  That would help senders/managers know the device is working, as this does appear to be an issue based on this thread. http://www.prestoplace.com/forum/thread/10184/Worked-Once--But-Not-Twice/

2.  When changes are made by the account manager in the times of day the printing mailbox checks for new messages, how long does it take to implement this change?  If the mailbox is scheduled to check for messages at 10pm, but at 9:30pm I go in and change that setting to check at 11pm instead, what happens?

3.  What happens if the printing mailbox is scheduled to check for messages at, say, 10pm but the line is in use at that time?

4.  I know that the printing mailbox end user can force an automatic check for new messages, but can an account manager do this too?