NAME
SYNOPSIS
DESCRIPTION
EXIT CODES
SEE ALSO
AUTHOR

## NAME

mprobe - smtpserver aliveness probe

## SYNOPSIS

mprobe hostname

## DESCRIPTION

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

## EXIT CODES

| 0 2 3 4 5 17, 19 18 |  | All is well, smtpserver 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 smtpserver hungup on us, most likely The remote smtpserver did respond something, but it did not begin with "220"
| 20 99 |  | 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>