exchange 2007 fetchmail

If you have to fetch mails from exchange 2007 with fetchmail you can get following errors

fetchmail: Server CommonName mismatch: mailserver != IP
fetchmail: Server certificate verification error: unable to get local issuer certificate
fetchmail: Server certificate verification error: certificate not trusted
fetchmail: Server certificate verification error: unable to verify the first certificate
fetchmail: Error exchanging credentials


The solution is put the fingerprint of the exchange2007 into your .fetchmailrc and use the following parameters:
sslproto ssl23
auth ntlm