From: mouss (moussml.netoyen.net)
Date: Thu Oct 01 2009 - 16:51:37 CDT

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Ralf Hildebrandt wrote:
> * Hagen Fürstenau <hfuerstenaugmx.net>:
>> Hi,
>>
>> I'm using dovecot for SASL authentication:
>>
>> smtpd_sasl_auth_enable = yes
>> smtpd_recipient_restrictions =
>> permit_mynetworks
>> permit_sasl_authenticated
>> reject_unauth_destination
>> smtpd_sasl_type = dovecot
>> smtpd_sasl_path = private/auth-client
>>
>> Now if for whatever reason dovecot is not running, smtpd will also
>> refuse to work, complaining "fatal: no SASL authentication mechanisms".
>
> Indeed!
>
>> I would much prefer it to fall back to "smtpd_sasl_auth_enable = no" in
>> that case, so that mail for local recipients can still be received. Is
>> this possible?
>
> It's the one problem we're having here as well: When updating dovecot,
> postfix won't work due to that...
>

for the auth part, only enable auth for submission (587).

for the "deliver" part, make it after the filter, so that mail is still
kept in the local queue.

I used to stop postfix while upgrading dovecot, but I don't do that
anymore. I now only stop postfix if upgrading mysql (I thought about
dumping the db and changing postfix config, but this is too much...).

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