troubleshooting Question

How to prevent that sbs 2011 communicate with the internet on ipv6 protocol for smtp

Avatar of LDecock
LDecock asked on
Internet / Email Software
1 Comment1 Solution135 ViewsLast Modified:

I want to sent a email to Gmail account i receive everytime this error message from

--[------ Oorspronkelijk bericht --------]
Van: Microsoft Outlook <>
Datum: 08-01-2016 08:16 (GMT+01:00)
Aan: Microsoft Outlook <>
Onderwerp: Onbestelbaar: Fw: Verlichting b-terrein heeft uw bericht voor de volgende e-mailadressen geweigerd:
Johan Van den Bossche ( gaf deze fout:
[2a02:a018:203:1800:b41a:da6d:522f:666] Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication. Please review for more information. ko8si163220171wjb.26 - gsmtp ]

My provider (proximus) don't support for the moment Ipv6 PTR adressing
is their another solution ?



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