On Wed, Sep 21, 2016 at 02:33:22PM +0100, Alec Muffett wrote: > I ran dtruss on the execution of tin to establish how far in the connection > process it gets, which I have recreated below. > > Is there a way to convince Tin that auth is not required? no, but if you run tin in debug mode ("-D 1") the reason for trying to auth should show up in the log.