[Dovecot] Certificate Server name!

[Andy Shellam]

Hi Kirti,

You entered "mail.tib.com" somewhere in your mail client (the software 
that's throwing the error about the certificate mismatch.)  However the 
server thinks its name is "imap.tib.com."
Therefore in your client, tell it to connect to imap.tib.com instead of 
mail.tib.com (e.g. if it's Thunderbird, it'll be in Tools > Account 
Settings.)

I don't currently use SSL with Dovecot so I do not how the certificate 
is set up, but with OpenSSL, it's the common name (CN) field in the 
certificate that defines the server name.
I would say it would be much easier to just change the hostname in your 
client settings.

Andy

kbajwa wrote:
> OK.
>
> Can you tell me where I entered "mail.tib.com" server name when I created a
> certificate? I do not remember. The only place I can think of is in
> /etc/postfix:
>
> 	myhostname  =  mail.tib.com
>
> However, I did go back & changed it to:
>
> 	myhostname  =  imap.tib.com
>
> but the message did not go away!
>
> Do I need to recreate the certificate? If yes, then how is it done? 
>
> I think I just installed & setup Postfix, Dovecot, but did not physically
> created a certificate.
>
> Is the certificate automatically created, from information in
> /etc/postfix/main.cf, when Dovecot is setup? If that is the case, I can
> uninstall Dovecot & re-install it unless there is an easy way.
>
> Did I mention that I am pretty new to Postfix & Dovecot (and LINUX in
> general).
>
> Thanks.
>
> Kirti
>
>
>
>
> -----Original Message-----
> From: Andy Shellam [mailto:andy.shellam-lists at mailnetwork.co.uk] 
> Sent: Sunday, July 06, 2008 12:58 PM
> To: kbajwa at tibonline.net
> Cc: 'Dovecot Mailing List'
> Subject: Re: [Dovecot] Certificate Server name!
>
> Hi Kirt,
>
> Easy!  Either connect to imap.tib.com instead of mail.tib.com, or create 
> and install a new security certificate on the server which is for 
> mail.tib.com instead.
> It's as simple as the message says - you've said your mail server is 
> called "mail.tib.com" but your installed security certificate is for 
> "imap.tib.com."
>
> Andy
>
>
> kbajwa wrote:
>   
>> Setup of Dovecot went smoothly.
>>
>> Now when I try to retrieve mail from the server, I get the following
>> message:
>>
>> Security Error: Domain name mismatch
>>
>> You have attempted to establish a connection to "mail.tib.com"
>> However, the security certificate presented belongs to "imap.tib.com".....
>>
>>
>> How to fix this message?
>>
>> Thanks in advance.
>>
>> Kirt
>>
>>
>>
>>   
>>     
>
>
>
>