On 2.3.2010, at 9.18, Daniel L. Miller wrote:

> OK - I'm an idiot.  I'll just admit that up front and get it out of the way.
> 
> Now that that's settled, what is the difference between "SSL" and "TLS"
> in a MUA - particularly Thunderbird - in a Postfix context?

http://wiki.dovecot.org/SSL tries to explain their difference.

> I would have sworn I used to use Thunderbird with "SSL" specified and
> connected to my Postfix servers fine.  Now, I can only connect in "TLS"
> mode.  What did I break?

You no longer have smtps port enabled?

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