On 12/6/2012 4:54 AM, jug...@lavabit.com wrote:
>> and for the above to /work/ dovecot needs to offer a non-plaintext
>> mechanism, such as CRAM-MD5.
> 
>> I would strongly suggest removing the "noplaintext" keyword during
>> testing.
> 
> Can it be used on a regular basis (i.e., not just for testing)? 

Yes, tell dovecot to offer non-plaintext mechanisms.

Alternately, tell postfix to not offer non-TLS AUTH with main.cf
smtpd_tls_auth_only = yes

> Will it be
> better to enable a non-plaintext mechanism? Which one is the best?

There is no best, there is only what fits your needs.  I expect it's
common to specify
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = noanonymous

and then after verifying that SASL works, adding
smtpd_tls_auth_only = yes


  -- Noel Jones

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