Re: [exim] DKIM: signing failed (RC -102)

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Author: kuncho pencho
Date:  
To: exim-users
Subject: Re: [exim] DKIM: signing failed (RC -102)
Hi,

Thanks, I read about that now. The problem is in my ISP. They do not support 2048 bit key at this moment. :-( I'm disappointed.

Best Regards.








>-------- Оригинално писмо --------


>От: Andrew C Aitchison andrew@???


>Относно: Re: [exim] DKIM: signing failed (RC -102)


>До: pencho kuncho


>Изпратено на: 26.08.2016 16:40



On Fri, 26 Aug 2016, pencho kuncho wrote:



> Hi,


> I found what is wrong. The key was 2048bits. When create 1024bit key, everything is ok. Why can't use 2048bit key? Exim is version 4.87.




This isn't really an exim issue, but a DNS one.

The DKIM DNS TXT record for a 2048-bit key is more than 255 characters so

you need to be extra careful how you enter it into the DNS database.





https://www.experts-exchange.com/questions/28381437/Is-there-a-registrar-that-will-allow-2048-bit-DomainKeys-DKIM-values-in-a-domain-TXT-record.html

suggests splitting the key into multiple entries, and discusses how

to do this for at least one DNS server.



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