On Thu, Aug 11, 2011 at 09:00:53AM -0400, Brian Evans - Postfix List
wrote:
> On 8/11/2011 8:56 AM, Bostjan Skufca wrote:
> > Something like this:
> > smtpd_discard_ehlo_keywords = silent-discard, etrn, dsn
> > smtpd_discard_ehlo_keywords_auth = silent-discard, etrn
> >
> > Not sure if SMTP protocol would support it though...
> >
> One problem with this, AUTH happens AFTER EHLO.
> So it becomes an out of sequence for the protocol. Therefore,
> not possible.
Right. The workaround is to separate your submission from your MX
mail. This can be done within a single instance using a different
port (587 has been set aside for that purpose) or IP address; or if
greater distinctions are desired, such as a different content_filter
or header_checks(5), another instance might be best.
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