Network Services::IMAP Mail225Field ValueTimeout* 10Critical Maximum Remote Service LatencyWarning Maximum Remote Service LatencyTable C.38. Network Services::FTP settingsC.8.3. Network Services::IMAP MailThe Network Services::IMAP Mail probe determines if it can connect to the IMAP 4 service on thesystem. Specifying an optional port will override the default port 143. It collects the following metric:• Remote Service Latency — The time it takes in seconds for the IMAP server to answer a connectionrequest.The required Expect value is the string to be matched against after a successful connection is madeto the IMAP server. If the expected string is not found, the probe returns a CRITICAL state.Field ValueIMAP Port* 143Expect* OKTimeout* 5Critical Maximum Remote Service LatencyWarning Maximum Remote Service LatencyTable C.39. Network Services::IMAP Mail settingsC.8.4. Network Services::Mail Transfer (SMTP)The Network Services::Mail Transfer (SMTP) probe determines if it can connect to the SMTP port onthe system. Specifying an optional port number overrides the default port 25. It collects the followingmetric:• Remote Service Latency — The time it takes in seconds for the SMTP server to answer aconnection request.Field ValueSMTP Port* 25Timeout* 10Critical Maximum Remote Service LatencyWarning Maximum Remote Service LatencyTable C.40. Network Services::Mail Transfer (SMTP) settingsC.8.5. Network Services::PingThe Network Services::Ping probe determines if the RHN Server can ping the monitored system or aspecified IP address. It also checks the packet loss and compares the round trip average against theWarning and Critical threshold levels. The required Packets to send value allows you to control howmany ICMP ECHO packets are sent to the system. This probe collects the following metrics: