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My mail users are trying to integrate security on their mail client when setting up email and they're seeing a generic certificate which is labeled "bad". I checked my Dovecot / Postfix config file and I have no idea where this is coming from. I would assume it's from Dovecot since it is pulled from the "Receiving Email" section of the mail client. I just don't know where it's pulling this generic certificate from...
Can anyone please help me locate the source of this?
Does dovecot.conf have ssl_cert_file or ssl_key_file defined?
I checked there and I don't see one defined (un-commented) at all. I went through the entire file and did not see it. I then ran the dovcot -n command to see if it was reading one from somewhere else but the config output does not show one either...
I get the same think when I try to connect to my mail server using Mozilla Thunderbird or Evolution.
I am using IMAP via port 443 and then go into the mail client and when I am on the configure IMAP server and under authentication, I enter my mail server and select "Check For Supported Types" button. I always get the same response...
I want to use TLS on my mail server and have a SSL certificate from Verisign. Can I simply not just add my SSL certificate from Verisign for my mail server in the dovecot.conf file? Will that work and problerly display the correct certificate settings needed for TLS authentication?
OK - So it appears that I have not generated anything using openssl on my server. I'm on Verisign's SSL website and in order to generate a SSL certificate, I must run openssl on my mail server and generate something which in turn I need to paste in the Verisign site. I am guessing I am generating a public / private key and then pasting the public key in the Verisign website to generate the certificate I need for SSL. Is this not correct?