Releasing emails from quarantine with sendmail
ecasarero at gmail.com
Wed Mar 30 22:12:20 IST 2011
Well, today i've learned something.
*For initial mail submission, i.e., if one of the options -bm (default), -bs,
or -t is specified, submit.cf is used (if available), for other operations
sendmail.cf is used.*
So, all the sendmail behaviour was configured in submit.cf not sendmail.cf.
I moved submit.cf and created a link between sendmail.cf and submit.cf. So
submission will behave the same as the daemon, using the ../mqueue and
trying to deliver the email first (to the final MTA), and if it fails it
will store it in the regular queue.
My first tests went ok, however i will give this further testing to try to
find any nasty side efect of this.
2011/3/30 Eduardo Casarero <ecasarero at gmail.com>
> I thought this was a winner, but although the email is not scanned the
> "Always looked up last" is still triggered and a db record is created.
> I also retried the sendmail line with -OQueueDirectory=/var/spool/mqueue
> but i get a rare permission error on the queue, i think that option is not
> valid using sendmail to send email, it just works when sendmail is a daemon
> recieving emails (maybe a consecuence of the monolithic architecture).
> As a last option i will tweak the "Always looked up last" function to avoid
> logging specific localhost traffic. If i found a workaround with sendmail i
> will post it,
> Thanks for all the comments,
> 2011/3/30 Alex Neuman <alex at vidadigital.com.pa>
>> Might I suggest "not to scan e-mail from 127.0.0.1 and to:yourdomain.com"
>> just to avoid a bad script from being (mis)used to send e-mail out from your
>> server onto third parties? You *usually* don't release mail to third
>> parties, and in such exceptions you might want to make additional exceptions
>> for those third parties.
>> On Mar 30, 2011, at 11:15 AM, Jules Field wrote:
>> > One way to solve this is to not scan mail originating from 127.0.0.1 and
>> then just use sendmail to re-inject the message. As it's from localhost,
>> MailScanner will ignore it once you put that rule in place.
>> > On 29/03/2011 19:31, Eduardo Casarero wrote:
>> >> Hi everybody, does anyone know if it is possible to "release" an email
>> and queue it in the sendmail outbound queue without being processed by
>> MailScanner? I want to avoid MS because it generates a duplicated record in
>> the DB. We used Mailwatch release method for some time and then a custom
>> script to feed the released email to sendmail, but both options makes the
>> email to be reprocesed by MS.
>> >> I searched and read about sendmails options, but i coudnt find anything
>> usefull. ¿How does MScanner send HAM emails to recipients? copying df* and
>> qf* to the outbound queue and firing a sendmail process to deliver that
>> particular email?
>> >> Any comment/idea would be appreciated.
>> >> Thanks,
>> >> Eduardo.
>> > Jules
>> > --
>> > Julian Field MEng CITP CEng
>> > www.MailScanner.info
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>> > --
>> > This message has been scanned for viruses and
>> > dangerous content by MailScanner, and is
>> > believed to be clean.
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>> Alex Neuman van der Hans
>> Reliant Technologies / Vida Digital
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