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Old 07-25-2011, 07:22 AM   #1
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Registered: Jul 2011
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Unhappy Ubuntu mail server- ssl certificate how do i get it to be verified on Outlook

I used a self assigned certificate

openssl req -new -outform PEM -out smtpd.cert -newkey rsa:2048 -nodes -keyout smtpd.key -keyform PEM -days 365 -x509

i followed configurations from th below website

On my outlook client p.c`s whenever connecting for the first it pops up a message telling mi tht my certificate on my server cannot be verified then it continues after click yes.

How do i do away with tht message other thn buying trusted certificate
Or refer me to a good site with Ubuntu mail server configuration which makes uses of mysql

these are the lines in my /etc/dovecot/dovet.conf file
ssl_cert_file = /etc/ssl/certs/dovecot.pem
ssl_key_file = /etc/ssl/private/dovecot.pem

Last edited by inno_k; 07-25-2011 at 11:33 AM.
Old 07-25-2011, 05:04 PM   #2
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Registered: Apr 2011
Location: California, US
Distribution: Fedora
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Copy /etc/ssl/certs/dovecot.pem onto your Windows PC. On your PC, open Internet Explorer and import the dovecot.pem certificate file (Tools->Internet Options->Content Tab->Certificates). I put mine into the Trusted Root Certification Authorities but I'm importing the self signed CA Certificate which I used to sign my dovecot certificate. In your case, I would try to import into Trusted Publishers if importing into Trusted Root Certification Authorities doesn't work.
Old 08-02-2011, 01:11 PM   #3
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Registered: Jul 2011
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i solved th problem

i added th following line in /etc/dovecot/dovecot.conf
just b4 ssl certficates configurations line
disable_plaintext_auth = no
Old 08-02-2011, 04:01 PM   #4
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Distribution: Ubuntu 10.10, Slackware 64-current
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If you own the domain and it is a top level domain, e.g. and not, you might be interested in StartSSL. They offer free certificates that are recognized by browsers and email programs, unlike self signed ones.


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