Qmail-tcpto
From Qmail-LDAP Wiki
qmail-tcpdo shows the timeout stats kept by qmail-ldap internally. You can see how long ago the listed host was first contacted without success.
Example:
# /var/qmail/bin/qmail-tcpto 202.67.240.187 timed out 188122 seconds ago; # recent timeouts: 1 64.20.33.4 timed out 186534 seconds ago; # recent timeouts: 10 129.142.130.5 timed out 342663 seconds ago; # recent timeouts: 1 72.18.195.174 timed out 195505 seconds ago; # recent timeouts: 10 64.74.223.3 timed out 267837 seconds ago; # recent timeouts: 10 216.141.117.100 timed out 269 seconds ago; # recent timeouts: 10 64.20.33.115 timed out 186594 seconds ago; # recent timeouts: 10 194.154.8.245 timed out 80489 seconds ago; # recent timeouts: 1 202.67.240.102 timed out 188062 seconds ago; # recent timeouts: 1
