View Full Version : Monitoring SMTP and DNS services for connection issues

17th December 2015, 08:28 PM

It was brought to my attention that Connection Time and Transaction Time of our SMTP and DNS servers may be slow, according to mxtoolbox.

I already have smokeping and munin installed. I'm using EchoPingSMTP and EchoPingDNS with smokeping, but I don't think they actually test the connection, correct? I think it basically just pings the respective services and reports back the round-trip times.

I'd like to actually determine the amount of time after the connection occurred before the 220 greeting was received, and the time to actually send a test message (even if it is a "relay denied" message), without having to pay mxtoolbox to do it.

Does anyone know which tools I should be using to do this?