[VM] VM / stunnel4 / STARTTLS documentation

[Matthew Vernon]

Hi,

I wonder if the documentation could be enhanced a little? I spent quite
some time figuring this out, and a quick note in the docs would have
saved me some pain.

Essentially, if your IMAP server does STARTTLS on port 143, you have to
tell stunnel to do this, otherwise nothing works (it quits returning 0,
and VM says there's an IMAP problem). This is readily achieved by
creating a little file containing the single line:
protocol = imap
and setting vm-stunnel-program-additional-configuration-file
appropriately. 

It's far from obvious that this is the case, so maybe a short note in
the vm-IMAP instructions could be added to this effect?

Thanks,

Matthew

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