mx.google.com rejected your message to the following e-mail addresses

Home Forums Messaging Software Exchange 2007 / 2010 / 2013 mx.google.com rejected your message to the following e-mail addresses

This topic contains 0 replies, has 1 voice, and was last updated by Avatar adw_uk 2 years, 9 months ago.

Viewing 1 post (of 1 total)
  • Author
    Posts
  • Avatar
    adw_uk
    Member
    #166539

    Last week on a client SBS2011 box the SKY business broadband went down and I had to switch the server gateway to a BT ADSL with static for a few hours to keep things running.

    Once the connection restored I went to switch back, (192.168.1.253 to .254) but the process hung and when I opened DNS it was not populated. I checked the DNS Server service and it was stuck closing down but it did eventually close and after restarting I could see all my DNS info and all seemed ok.

    That is until I started to get users sending me bounce-backs like this:

    [FONT=&quot][SIZE=12px]mx.google.com rejected your message to the following e-mail addresses:[/SIZE][/FONT]

    [FONT=&quot]’[email protected]’ ([email protected])[/FONT]

    [FONT=&quot]mx.google.com gave this error:
    [2a02:c7d:464:7200:346e:dc36:8ea6:6540] Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication. Please review https://support.google.com/mail/?p=ipv6_authentication_error
    for more information. uh16si30692310wjb.8 – gsmtp [/FONT]

    [FONT=&quot]Your message wasn’t delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery.[/FONT]

    Here are the headers:
    [FONT=&quot]Diagnostic information for administrators:[/FONT]

    [FONT=&quot]Generating server: CLIENTSVR.CL.local[/FONT]

    [FONT=&quot][email protected]
    mx.google.com #550-5.7.1 [2a02:c7d:464:7200:346e:dc36:8ea6:6540] Our system has detected that 550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR 550-5.7.1 records and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=ipv6_authentication_error
    for more 550 5.7.1 information. uh16si30692310wjb.8 – gsmtp ##[/FONT]

    [FONT=&quot]Original message headers:[/FONT]
    [SIZE=10px]Received: from CLIENTSVR.CL.local ([fe80::25dd:f159:ecbf:ad7b]) by[/SIZE]
    [SIZE=10px]CLIENTSVR.CL.local [/SIZE][SIZE=10px]([fe80::25dd:f159:ecbf:ad7b%14]) with mapi id 14.03.0301.000;[/SIZE]
    [SIZE=10px]Mon, 8 Aug 2016 16:44:13 +0100[/SIZE]
    [SIZE=10px]From: John Doe [/SIZE]
    [SIZE=10px]To: “‘[email protected]'” , [/SIZE]
    [SIZE=10px]Subject: ‘Staircasing’ Valuation for Mr Smith[/SIZE]
    [SIZE=10px]Thread-Topic: ‘Staircasing’ Valuation for Mr Smith[/SIZE]
    [SIZE=10px]Thread-Index: AdHxi7YTFQNyDoO6T2m0yJBO5GinDQAAAAHA[/SIZE]
    [SIZE=10px]Disposition-Notification-To: [/SIZE][SIZE=10px]John Doe [/SIZE]
    [SIZE=10px]Date: Mon, 8 Aug 2016 15:44:13 +0000[/SIZE]
    [SIZE=10px]Message-ID: <[email protected]>[/SIZE]
    [SIZE=10px]Accept-Language: en-GB, en-US[/SIZE]
    [SIZE=10px]Content-Language: en-US[/SIZE]
    [SIZE=10px]X-MS-Has-Attach:[/SIZE]
    [SIZE=10px]X-MS-TNEF-Correlator:[/SIZE]
    [SIZE=10px]x-originating-ip: [192.168.1.165][/SIZE]
    [SIZE=10px]Content-Type: multipart/alternative;[/SIZE]
    [SIZE=10px]boundary=”_000_1e5c90cc717c4534b2d7315b1e754999CAB 002cglocal_”[/SIZE]
    [SIZE=10px]MIME-Version: 1.0[/SIZE]

    I researched the issue and found that following the process hang switching gateway IP ALL the iPv4 and 6 NIC addresses in DNS had been ticked so I noted the 2 addresses for my actual NIC, unticked the rest and switched back to root hints as suggested by, ‘Fix My Network’.

    I also noted that in all outgoing SMTP headers they now contain the iPv6 info fe80::25dd:f159:ecbf:ad7b instead of iPv4 192.168.1.1.

    Can anyone advise how to resolve this?

    Kind regards,
    Andrew

Viewing 1 post (of 1 total)

You must be logged in to reply to this topic.