[SAC] [OSGeo] #2475: OSGeo mail server on DNS Blacklist

[OSGeo]

#2475: OSGeo mail server on DNS Blacklist
---------------------------+------------------------
 Reporter:  Jeff McKenna   |       Owner:  jsanz
     Type:  task           |      Status:  new
 Priority:  normal         |   Milestone:  Unplanned
Component:  Mailing Lists  |  Resolution:
 Keywords:  mailman        |
---------------------------+------------------------

Comment (by neteler):

 I recently activated the "bounce" notifications in mailman for the lists I
 am managing and got this notification:


 {{{
 550-Your message to <redacted_grass_subscriber> was classified as SPAM.
 Please add
     550-more content, cut down on HTML links, use fewer naughty words etc.
     Also, 550-ask your IT dept to make sure your mailserver has
 REVERSEDNS,
     SPF, DKIM, 550 and is not on any black lists. Your score: 360 (in
 reply to
     end of DATA command)
 }}}

 **Question**: do we have all measures in place and properly set up?

  * REVERSEDNS
    * unclear to me: https://www.debouncer.com/reverse-dns-
 check?ip=lists.osgeo.org
  * DKIM
    * no idea: https://www.dmarcanalyzer.com/dkim/dkim-check/
  * SPF
    * looks ok:
 https://www.dmarcanalyzer.com/spf/checker/?dmarcdns%5Btype%5D=spf&dmarcdns%5Bdomain%5D=lists.osgeo.org
  * not backlisted
    * looks good:
 https://www.debouncer.com/blacklistlookup?t=lists.osgeo.org

-- 
Ticket URL: <https://trac.osgeo.org/osgeo/ticket/2475#comment:21>
OSGeo <https://osgeo.org/>
OSGeo committee and general foundation issue tracker.