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Mailman and duplicate message IDs

Discussion in 'E-mail Discussion' started by JanKrohn, Mar 27, 2018.

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  1. JanKrohn

    JanKrohn Active Member

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    Hi,

    I have a couple of mailing list with a lot of subscribers (3000+). Now Mailman has the habit to send out multiple messages with the same message ID. Up until recently, that has not been an issue.

    However, now this is causing problems. I get more and more bounces from outlook.com, live.com and hotmail.com.

    Here's the log from my last message:
    Code:
    This message was created automatically by mail delivery software.
    
    
    A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
    
    
      xxx@hotmail.com
    
        host hotmail-com.olc.protection.outlook.com [104.47.40.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@hotmail.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [CO1NAM03FT011.eop-NAM03.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    
      xxx@outlook.com
    
        host outlook-com.olc.protection.outlook.com [104.47.6.33]
    
        SMTP error from remote mail server after RCPT TO:<xxx@outlook.com>:
    
        452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR02FT014.eop-EUR02.prod.protection.outlook.com]:
    
        retry timeout exceeded
    MS doesn't seem to be interested in fixing this...
    What does '452 4.5.3 Recipients belong to multiple regions ATTR38 [VE1EUR01FT057.eop-EUR01.prod.protection.outlook.com]' mean to say to me?

    Anyway... Is there any configuration to force Mailman to use a new Message ID for each outgoing message?
     
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

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    Hello,

    I don't believe there's a supported method of generating a unique message ID for each individual recipient with the Mailman configuration itself. As far as Exim/Dovecot, you could reduce the "batch_max" value, however that's highly discouraged due to the performance penalty the system would incur.

    The best approach would be to report this to Microsoft's support team directly, as it seems more like a bug with their SPAM detection as opposed to an actual policy they intend to enact.

    Thank you.
     
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  3. JanKrohn

    JanKrohn Active Member

    Joined:
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    Thanks for the reply.
    In my experience, Outlook.com support is very unresponsive. It's easier to get a meaningful reply from a grapefruit than from Outlook support...

    The above quoted thread is a prime example. The supporter doesn't even fully understand the question.

    So I guess I'll have to live with this...
     
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