NAME
SYNOPSIS
DESCRIPTION
EXIT CODES
SEE ALSO
AUTHOR

## NAME

mprobe - smtp-server aliveness probe

## SYNOPSIS

mprobe hostname

## DESCRIPTION

mprobe is usable to test, if the named host (no IP address usable!) has a smtp-server that responds properly.

## EXIT CODES

0 2 3 4 5 17, 19 18 20 99 |  | All is well, smtp-server responded just fine Can't resolve target hostname mprobe internal failure, can't create socket (should not happen!) failed to connect to the remote host mprobe internal failure, fdopen() failed.. (should not happen!) The remote smtp-server hung-up on us, most likely The remote smtp-server did respond something, but it did not begin with "220" Timeout (60 seconds) from start of processing. Missing mandatory host parameter. |

## SEE ALSO

scheduler(8), smtpserver(8), smtp(8)

## AUTHOR

This tool is authored and copyright by: Matti Aarnio <mea@nic.funet.fi>