[Dovecot] Dovecot Virtual Users with Sendmail

[Steffen Kaiser]

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On Thu, 3 Jan 2013, Steffen Kaiser wrote:

> On Wed, 2 Jan 2013, DormitionSkete at hotmail.com wrote:
>
>> On Jan 2, 2013, at 11:12 AM, Andrzej A. Filip wrote:
>> 
>>> On 01/02/2013 06:53 PM, DormitionSkete at hotmail.com wrote:
>>>> [...]
>>>> This is the mail header from the mqueue:
>>>> 
>>>> [...]
>>>> MDeferred: dovecot mailer (/usr/local/libexec/dovecot/dovecot-lda) exited 
>>>> with EX_TEMPFAIL
>>>> [...]
>>> 
>>> Check dovecot's logs
>>> If it does not help the push delivery of messages ni sendmail's queue in
>>> verbose mode: "sendmail -Am -v -q"
>> 
>> Well, the logs showed this:
>
> Note, sendmail started the /usr/local/libexec/dovecot/dovecot-lda, but the 
> LDA failed temporarily. Where does Dovecot LDA log to??
> I suppose that the LDA is executed with permissions, that does not allow to 
> write to the mail storage or that the LDA does not have permission to access 
> the userdb. Maybe it's the same problem as in the thread "From Sendmail to 
> Dovecot mdbox, what is missing.".
>
> I suggest to replace the "P=" in the Dovecot mailer with a wrapper script,

I mean, hack the sendmail.cf file here:

######################*****##############
###   DOVECOT Mailer specification                              ###
##################*****##################
Mdovecot,   P=/usr/local/libexec/dovecot/dovecot-lda, F=DFMPhnu9,
                  S=EnvFromL/HdrFromL, R=EnvToL/HdrFromL,
                  T=DNS/RFC822/X-Unix,
                  A=/usr/local/libexec/dovecot/dovecot-lda -d $u

Replace /usr/local/libexec/dovecot/dovecot-lda with 
/etc/mail/smrsh/wraplda.sh (or whereever your smrsh directory is 
located). You do have a symlink to /usr/local/libexec/dovecot/dovecot-lda 
in there, haven't you?

> you get all the necessary information with:
>
> ================ wraplda.sh
> #!/bin/sh
>
> ( date ; id
>  echo "$@"
>  /usr/local/libexec/dovecot/dovecot-lda "$@"
>  rc=$?
>  echo exit code: $rc
>  exit $rc
> ) >> /tmp/lda.log 2>&1
> =================
>
> Put it into your "smrsh" directory.

Make it eXecutable.

- -- 
Steffen Kaiser
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