Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
TESTMXLOOKUP(1)		    Double Precision, Inc.	       TESTMXLOOKUP(1)

NAME
       testmxlookup - Look up mail relays for a	domain

SYNOPSIS
       testmxlookup [domain...]

DESCRIPTION
       testmxlookup lists the names and	IP addresses of	mail relays that
       receive mail for	the domain. This is useful in diagnosing mail delivery
       problems.

       testmxlookup sends a DNS	MX query for the specified domain, followed by
       A/AAAA queries, if needed.  testmxlookup	lists the hostname and the IP
       address of every	mail relay, and	its MX priority.

   DIAGNOSTICS
       The error message "Hard error" indicates	that the domain	does not
       exist, or does not have any mail	relays.	The error message "Soft	error"
       indicates a temporary error condition (usually a	network	failure	of
       some sorts, or the local	DNS server is down).

SEE ALSO
       courier(8)[1], RFC 1035[2].

AUTHOR
       Sam Varshavchik
	   Author

NOTES
	1. courier(8)
	   [set	$man.base.url.for.relative.links]/courier.html

	2. RFC 1035
	   http://www.rfc-editor.org/rfc/rfc1035.txt

Courier	Mail Server		  02/10/2011		       TESTMXLOOKUP(1)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR | NOTES

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=testmxlookup&sektion=1&manpath=FreeBSD+12.1-RELEASE+and+Ports>

home | help