Fetchmail - Self-Signed Certificate Warnings

Hi All,
I have been reading these forums for a while and they have definitely helped me configure my OSX Server. Probably the first place I check for any dramas I have with my server.
To start with I though i would offer a solution that I have found to the warning that comes up with fetchmail seeing a common name mismatch in an ssl certificate. If you are using fetchmailrc add:
sslcommonname 'the.name.the.server.points.to'
to your poll user line.
Eg.
poll mail.mailserver.com with proto IMAP
user '[email protected]' there with password 'password' is 'users-mailbox' here options fetchall sslcommonname 'the.name.the.server.points.to'
Now to my problem.
I have the following warning in my logs that I cannot get rid of:
.fetchmailrc[xxx]: Server certificate verification error: self signed certificate in certificate chain
What i have done to try and rid myself of this warning:
Download the certificates using openssl -connect, save the cert, c_rehash the cert, add the command sslcertpath '/path/of/the/cert'
I thought this would simply check the certificate against my copy rather than check if it is self-signed.
No bone. This didn't seem to make any difference.
Any suggestions?

Good news.
I believe I have figured it out. Hope this helps someone.
So to get rid of those pesky errors I manually checked the ssl fingerprint on each certificate. Not sure why a certificate comparison via sslcertpath didn't work, but it's working with sslfingerprint.
Basically, what you need to do is:
1/ Get the SSL fingerprint of the certificate of your mail server. There are many ways of doing this but I found the easiest being just running fetchmail -v. If you read through the output you will find the fingerprint of each mail servers certificates. The output is usually redirected to your console so check there under all messages.
2/ Go to your fetchmailrc and next to each of your poll's add:
sslfingerprint 'xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx'
Where xx:xx etc is your fingerprint for each servers ssl certificates.
3/ That's it.

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