This optional parameter specifies whether to reject, accept, or ignore authentication when a Duo API problem occurs. Possible problems are: API call fails, API response returns an error, API response can not be parsed or API call times out. Default is to ignore. Format specifiers, such as %{GlobalVar:name}, are evaluated when the configuration is loaded. The possible values are:

• accept
• ignore
• reject

# Reject, instead of ignore, when timeout or other API problem occurs
Failmode reject