Hello all,

I have had a good hunt around and am having trouble finding a solution.

I am using stunnel to provide encrypted pop3 access to our mail server, and we have recently purchased a signed *.XXX.com certificate from godaddy.

This has been great since I can use the same cert on all our servers, and this has worked cleanly with the webservices.

However, I am having some issues with the stunnel and pop3 service. I am not entirely certain whether it is caused by the *.XXX.com certificate (although I think it unlikely) but was hoping someone more knowledgeable could enlighten me?

I currently have stunnel configured thusly:

stunnel -f \ -A /etc/stunnel/certs/sf_issuing.pem \ -p /etc/stunnel/certs/wildcard.XXX.com.stunnel.pem \ -r 127.0.0.1:110

Unfortunately my users are getting warnings, and using the openssl client I get:

$ openssl s_client -connect mail.XXX.com:995 CONNECTED(00000003) depth=1 /C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices@starfieldtech.com verify error:num=20:unable to get local issuer certificate verify return:0 --- Certificate chain 0 s:/O=*.XXX.com/OU=Domain Control Validated/CN=*.XXX.com i:/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices@starfieldtech.com 1 s:/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices@starfieldtech.com i:/L=ValiCert Validation Network/O=ValiCert, Inc./OU=ValiCert Class 2 Policy Validation Authority/CN=http://www.valicert.com//emailAddress=info@valicert.com --- Server certificate -----BEGIN CERTIFICATE----- [snip] -----END CERTIFICATE----- subject=/O=*.XXX.com/OU=Domain Control Validated/CN=*.XXX.com issuer=/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies, Inc./OU=http://www.starfieldtech.com/repository/CN=Starfield Secure Certification Authority/emailAddress=practices@starfieldtech.com --- No client certificate CA names sent --- SSL handshake has read 2381 bytes and written 340 bytes --- New, TLSv1/SSLv3, Cipher is AES256-SHA Server public key is 1024 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : AES256-SHA Session-ID: 4E550C07BDA9661C4B532A28110E5616549CB9FA72D37E5C979E3C6579F8FB99 Session-ID-ctx: Master-Key: 2E588101AA098463FA40C0353009F5842FA19B1C3D48D9A0000EB2E241EFB70BB10D52FE9BC444344D49653B9FEB25F4 Key-Arg : None Start Time: 1148463445 Timeout : 300 (sec) Verify return code: 20 (unable to get local issuer certificate) ---

I am positive this must have been covered before somewhere, but I haven't been able to find anything conclusive.

Apologies if I'm covering well trodden ground :)

TIA,