Error within my mail.log

Within my /etc/mail.log i see that there are some errors like this:

Nov 23 02:38:48 server1 courierpop3login: LOGIN, user=username, ip=[::ffff:89.205.148.108]
Nov 23 02:38:51 server1 postfix/smtpd[2626]: unable to get private key from '/etc/postfix/ssl/smtpd.key'
Nov 23 02:38:51 server1 postfix/smtpd[2626]: 2626:error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch:x509_cmp.c:389:
Nov 23 02:38:51 server1 postfix/smtpd[2626]: TLS engine: cannot load RSA cert/key data

The error occurs only with 1 user.
What could be the reason that this error occurs and how can i overcome/solve this?

 

Hi Hans

You can remove this bug by updating your smtpd.key

It stands in the guides here at HowToForge, how you update your key.

Best Regards
Mathias

 

@Mathias,

I did not know about this bug.
After some googleing, i found out that the error message is a little bit misleading and not serious.
Anyway, I've created the new certificates/keys using the commands:

cd /etc/postfix/ssl/
openssl genrsa -des3 -rand /etc/hosts -out smtpd.key 1024
chmod 600 smtpd.key
openssl req -new -key smtpd.key -out smtpd.csr
openssl x509 -req -days 3650 -in smtpd.csr -signkey smtpd.key -out smtpd.crt
openssl rsa -in smtpd.key -out smtpd.key.unencrypted
mv -f smtpd.key.unencrypted smtpd.key
openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650

I will verify my mail.log again to see if the problem is solved.

Thanks for your reply.

 

Solution worked!

The solution mentioned by Mathias helped me.
There are no errors anymore.

Thanks again!

This thread can be closed now.