Re: [exim] Can't get Exim to DKIM-sign

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Auteur: John McMurray
Datum:  
Aan: Andrey Utkin, exim-users
Onderwerp: Re: [exim] Can't get Exim to DKIM-sign
The exim list bounced back my message because of inline images (in my
signature)... Resending without the images:

Hello,

Its really hard to offer help without seeing the relevant parts of your
config file, but this is what I have in mine:

remote_smtp:
   driver = smtp
         #dkim_domain = gingergoat.co.za
         dkim_domain = $sender_address_domain
         dkim_selector = x
         #dkim_private_key = /etc/exim/dkim.private.key
         dkim_private_key = ${if 
exists{/etc/virtual/$sender_address_domain/dkim.private.key}{/etc/virtual/$sender_address_domain/dkim.private.key}{0}}
         dkim_canon = relaxed




NOTES:
1) I was testing initially with a specific domain and private key file
which are now commented out so I can handle virtual domains.
2) You say that the location of the key file is correct, but you should
make sure that it really is, ie that its a full absolute path. It
doesn't seem to work with relative paths. According to the spec the key
file is required and if it can't find it it simply skips the signing (no
error logged).
3) The key file should also have correct permissions for exim.

That's all I have for you... But that code above works for me. Of course 
you then also need an appropriate dns record. In my test case above that 
would be:
x._domainkey.gingergoat.co.za.     TXT    {public_key_here}


Regards,
John McMurray





On 31/01/2016 00:12, Andrey Utkin wrote:
> Hi All!
> Seems I cannot get DKIM signing.
> I seek for evidence of DKIM signature being created but find none.
>
> When I do this locally:
> echo TEST-TEST | mail -v -s TEST -S smtp=localhost me@???
>
> I get this in verbose log of exim:
> https://gist.github.com/andrey-utkin/f96395f7327df32ea93f
>
> The reply from gmail is here:
> https://gist.github.com/andrey-utkin/182a1bbd55fbe2092609
>
> It's Ubuntu Wily.
> "exim4-daemon-heavy" is installed.
> "dpkg-reconfigure exim4-config" was done.
> /etc/exim4/conf.d/main/00_dkim was created with this content:
> https://gist.github.com/andrey-utkin/04cd6f821315c8475a29
> the location of key file is correct.
>
> Wiki page is useless: https://github.com/Exim/exim/wiki/DKIM
>
> I followed this guide:
> https://www.debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
>
> Any clue?
>
> Thanks for any kind reply.
>
>
>



-- 
John McMurray     SoftSmart.co.za
Server Administrator | Development Manager



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