fetchmail certificate verification messages
keramida at ceid.upatras.gr
Mon Jul 5 06:05:41 UTC 2010
On Sat, 3 Jul 2010 23:36:58 +0200 (CEST), Marco Beishuizen <mbeis at xs4all.nl> wrote:
> I'm seeing in my logfiles a lot of messages like these from fetchmail:
> Jul 3 22:02:54 yokozuna fetchmail: Server certificate
> verification error: self signed certificate in certificate chain
> Jul 3 22:02:54 yokozuna fetchmail: This means that the root
> signing certificate (issued for /C=SE/O=AddTrust AB/OU=AddTrust External
> TTP Network/CN=AddTrust External CA Root) is not in the trusted CA
> certificate locations, or that c_rehash needs to be run on the
> certificate directory. For details, please see the documentation of
> sslcertpath and sslcertfile in the manual page.
> Does anyone know what these messages mean and if they are harmless or
This means that the certificate of CN="AddTrust External CA Root" is
signed by itself. It's a common thing when the administrator of the
respective SSL-enabled host has not bought a certificate from one of the
global CA authorities, but has signed the certificate with itself to
avoid the costs & process associated with maintaining a "normal"
If you know that the respective domain is indeed set up this way, the
warning is harmless.
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