TLS fails on imaps port

Andrew Morgan morgan at orst.edu
Mon Jan 25 18:12:45 EST 2010


On Mon, 25 Jan 2010, Bob Dye wrote:

> OK. Thanks.
>
> But it does seem odd that it supports STARTTLS on 143 but not 993.

The IMAP command "STARTTLS" is only offered by the server when the 
connection is currently unencrypted, such as when you first connect to 
port 143.  Port 993 is an SSL port, so by the time you see the CAPABILITY 
string from the server, SSL negotiation has already happened.

 	Andy


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