topic fetchmail error in Operating System - Linux

fetchmail error

Maaz — Tue, 08 Sep 2009 07:24:38 GMT

SLES10SP2
# rpm -q fetchmail
fetchmail-6.3.2-15.12

upon running fetchmail I getting the following error

fetchmail: Server CommonName mismatch: host7.nsmx.net != mycompany.com
fetchmail: Server certificate verification error: self signed certificate
fetchmail: Authorization failure on user@mycompany.com
fetchmail: Query status=3 (AUTHFAIL)

help/suggest

Re: fetchmail error

Matti_Kurkela — Tue, 08 Sep 2009 08:17:41 GMT

You're trying to connect to a server that has an invalid SSL certificate.

The certificate is invalid for two reasons:

1.) it is self-signed (= "home-made") and you have not explicitly configured the system to trust that certificate.
To configure a certificate as trusted, you typically have to add it to /etc/ssl/certs/ directory: see the documentation and/or support webpages for your Linux distribution for details.

2.) the name in the certificate does not match the server's name as detected by a DNS reverse lookup (host7.nsmx.net vs mycompany.com). A SSL certificate must be generated for the primary Fully-Qualified Domain Name of the server: if a certificate is generated for any other name (e.g. an alias name), it is assumed to be a forgery and rejected.

This is something that only the administrator of the server can fix.

MK

Re: fetchmail error

Mike Stroyan — Wed, 09 Sep 2009 01:44:22 GMT

You can get around a certificate failure by specifying a fetchmail -sslfingerprint option or fetchmailrc sslfingerprint keyword that matches the fingerprint of the certificate that a mail server presents. Check out the fetchmail man page description of sslfingerprint.