Exim and DKIM on debian

Discussion in 'Server Operation' started by michltm, Feb 21, 2016.

  1. michltm

    michltm New Member

    I have been following a tutorial : iodigitalsec.com/exim-dkim-and-debian-configuration/ to configure DKIM on debian.
    At the end I could verify my record with the command
    root@w:/etc/exim4# host -t txt 27564764._domainkey.yourdomain.com
    which worked.
    But using mail-tester.com, it is said that my messages are not signed with DKIM. Also My mails dont arrive in a lot of webmails
    such as hotmail even if I have an SPF and 9/10 score on mail-tester.com

    Does it give ways to verify why my messages are not signed with DKIM?
  2. ztk.me

    ztk.me Well-Known Member HowtoForge Supporter

    Are you using exim to send mail at all? Did you by chance send a test mail from terminal using mail-command ( those mails are often not coverd / signed ).
    What happens if you change
    DKIM_DOMAIN = ${sg{${lc:${domain:$h_from:}}}{^www\.}{}} 
    Just a few wild guesses since I'm not using exim - but I'd suggest checking / debuging logs
    15. Reducing or increasing what is logged
  3. michltm

    michltm New Member

    Thank your for the ideas. I am currently testing them, and will comment back when I have the results.
  4. michltm

    michltm New Member

    After many tries, I havent been able to configure the DKIM with Exim4. But I could do it using postfix (which is probably a bit easier, using this tuorial: https://www.digitalocean.com/commun...ix-as-a-send-only-smtp-server-on-ubuntu-14-04

    But sadly, having now a 10/10 score on mailtester-com dident lead to a better tolerance of webamils. So the problem must be somewhere else.

    So, despite having an an SPF and valid DKIM, my mail arrives
    -in spams with Gmail

    -doesn’t arrive at all with Hotmail and 1&1

    -arrive with no problems with Orange.

    I don’t know which way to look at, maybe it could have something to do with mx ?

    Here is my configuration, but first the mail-tester report:

    Score: 10/10

    -Your server 212.227.XXX.XXX is authentified to use [email protected]

    -Your server 212.227.XXX.XXX is authentified to use [email protected]

    -You DKIM signature is valid.

    -You dont send your emails from your own domain: we cant verify DMARC

    -Your server 212.227.XXX.XXX is correctly associated to mydomain.com

    -Your hostname mydomain.com is attached to a server.

    -Your server is not blacklisted.

    -Reverse DNS shows mydomain.com

    DNS parameters :

    Server of names 1&1

    A 212.227.XXX.XXX

    MX mx00.1and1.fr

    MX mx01.1and1.fr


    Server email 1&1

    Php code to send mails :



    error_reportingE_ALL );

    $headers "From: [email protected]\n";

    $headers .= "MIME-Version: 1.0\n";

    $headers .= "Reply-To:  <contact@ mydomain.com >\n";

    $to ="[email protected]";

    $subject ="Website subscription";

    $message ="Hi! \n Thanks for subscribing to mydomain.com. \n

    But in the best case I will end up in spams. It's a pitty. "


    "Test email sent";


    Thank in advance to the one who will avoid me new nights of insomnia!
  5. florian030

    florian030 Well-Known Member HowtoForge Supporter

Share This Page