Emails from certain domain moved to SPAM folder when DMARC is enabled

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    Marc Griesser

    I tried the workaround, but it does not seem to work.

    There was no /etc/psa/dmarc.conf so I created it and filled it as followed. Mails still get moved to INBOX.spam

    Plesk 17.8.11 on Ubuntu 18.04

    IgnoreMailFrom amazon.de,amazon.com
    ## IgnoreMailFrom domain[,...]
    ## default (none)
    ## Gives a list of domain names whose mail (based on the From: domain) is to
    ## be ignored by the filter. The list should be comma-separated. Matching
    ## against this list is case-insensitive. The default is an empty list,
    ## meaning no mail is ignored.
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    Daria Gavrilova

    Hello @Marc Griesser,

    Most probably you have faced with the Plesk bug РРРM-6847 which is planned to be completely fixed in future Plesk updates.
    To solve the issue, please apply the workaround from the following article: Mail messages with different 'smtp.mailfrom' and 'from' do not pass the DMARC filter and go to spam

    In case if it does not help, I recommend you to contact Plesk support on this matter.

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    Justin Lnch

    Maybe it would be good if they were marked as spam instead. Some customers don't use a spam folder (especially on pop 3) and only discover through webmail that some of their email is sitting in a spam folder online after investigation. Can the setting be changed from Quarantine if DMARC fails?

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    Anton Maslov

    >Can the setting be changed from Quarantine if DMARC fails?

    This is defined by sender domain TXT DMARC record settings, thus only sender decide if it should be "quarantine", "reject" or any other action.

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    Lars Doe

    Anton Maslov 

    Plesk's admin guide states "However, note that the receiving server is free to apply its own policy to incoming mail.".

    I have the same problem on our servers just like Justin Lnch: Customers won't see those mails. And if the spam filter is set to "Delete spam mails" you would expect spam mails to be deleted. Those mails will just stay there and clutter up their quota.

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