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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T05:36:17+00:00 2026-05-13T05:36:17+00:00

I have setup PostFix for receiving emails only. I want to authenticate the received

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I have setup PostFix for receiving emails only.

I want to authenticate the received emails against their sender email addresses by using SPF or DKIM.

Is there a good java plugin available for this? or do i need to write my own in java (other preferences C, C ++) ,please reply with relevant references.

Thanks in advance

Ashish

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  1. Editorial Team
    Editorial Team
    2026-05-13T05:36:18+00:00Added an answer on May 13, 2026 at 5:36 am

    The solution I followed is as:

    I attached the DKIM and SenderID milters available from Postfix add-ons list with my Postfix e-mail server.

    Since these milters can be configured to add e-mail headers in the received mails about their results, so I wrote a custom mail-filter using jilter api (java mail filter api), parsed the mail headers and hence I was able to determine and act about the authentication results of SPF and SenderID according to my custom logic.

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