Posted: Fri, 18 March 2011
On Saturday, 19 March, during the previously announced maintenance window, only Version 4 templates with API keys in the subject or mail-from address, Version 4 templates that have email addresses associated with API Keys, or Version 5 templates with API Keys filled out in section 0 will be accepted. All other templates will be automatically rejected. This behavior will commence starting at 8:00 AM on March 19, 2011.
Chief Technology Officer
American Registry for Internet Numbers (ARIN)