Attention: Thunderbird 52 and Kolab 16

[Daniel Hoffend]

With Thunderbird 52 the minimal required TLS version is 1.2. But somehow
guam has problems to work with TLS 1.2. I haven't had time to take a
closer look.

To fix this issue you've to change the internal configuration variable within
thunderbird to lower the minimum required TLS Version to 1.1

1) Go to: Thunderbird Preferences > Advanced > Config Editor

2) Search for: security.tls.version.min

3) Replace Value for security.tls.version.min with 1 (tls 1.0) or 2 (tls 1.1)

For more Information look at this mozilla article:
http://kb.mozillazine.org/Security.tls.version.*


--
Regards
Daniel Hoffend


On 2017-04-22 13:06, Mihai Badici wrote:
> On Saturday 22 April 2017 16:06:34 Stefan Froehlich wrote:
> > I can confirm this issue. This only happens if you set connection
> > security to STARTTLS or SSL/TLS. Setting this to None works.
> > 
> > 
> > MfG Stefan Froehlich
> > 
> > 42 ;-)
> > 
> 
> 
> 
> 
> 
> Could be because of use of SSL3.0 or something like this?
> I have an older kolab in place and as i see thunderbird  connect  without any 
> problem.
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