What does ?The list server is too busy? mean?
Version 3 of NTMail would queue up to 5 messages for NTList to process. When more than 5 messages were queued, this temporary failure would be displayed in order to delay incoming email.
The software was completely redesigned in version 4 onwards so that this problem no longer occurs even on the most busy list server.
Keywords:SMTP protocol 453 NTList list