[Pkg-exim4-users] flawed configuration causes mail server errors

Florian Weimer fw at deneb.enyo.de
Wed Dec 26 21:08:05 UTC 2007


* Haines Brown:

> The error message is:
>
>   fetchmail: Server CommonName mismatch: localhost 
>   	     != pop.hartford-hwp.com 
>   fetchmail: Server certificate verification error: self signed
>   	     certificate 
>  
> Does the first mean that fetchmail is not finding any name association
> between local hostname and pop.hartford-hwp.com.

No, the issue is that the certificate has been issued to "localhost"
(literally):

 - Certificate[0] info:
 # The hostname in the certificate does NOT match 'pop.hartford-hwp.com'.
 # valid since: Tue Nov 20 16:43:09 CET 2007
 # expires at: Wed Nov 19 16:43:09 CET 2008
 # fingerprint: 44:B3:8D:19:D1:83:C1:06:95:CB:22:69:73:CE:08:61
 # Subject's DN: C=US,ST=NY,L=New York,O=Courier Mail Server,OU=Automatically-generated POP3 SSL key,CN=localhost,EMAIL=postmaster at example.com
 # Issuer's DN: C=US,ST=NY,L=New York,O=Courier Mail Server,OU=Automatically-generated POP3 SSL key,CN=localhost,EMAIL=postmaster at example.com

So the error message issued by fetchmail is correct because the
certificate's common name should be "pop.hartford-hwp.com".



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