[Mimedefang] check_against_smtp_server() with STARTTLS and AUTH support

[Franz Schwartau]

Hi Kris!

On 31.07.2017 18:24, Kris Deugau wrote:
> Franz Schwartau wrote:
>> Hi Dianne, hi list members,
>>
>> I appreciate md_check_against_smtp_server() supplied by mimedefang.pl
>> very much. But it lacks two - IMHO - important features: ESMTP AUTH and
>> STARTTLS.
> 
> STARTTLS I can see, but I'm curious why you wanted AUTH at this stage?
> 
> Your nexthop inbound mail server shouldn't be asking for AUTH (arguably
> shouldn't even offer it on port 25);  aside from whatever processing
> you're doing in MIMEDefang you should theoretically be able to point
> your public MX records directly to this host.

If you don't need ESMTP AUTH it this stage, don't use it... ;-) I do
need it. And I don't think our setup for some customers should be part
of this thread.

The main change I did was to use Net::SMTP for
check_against_smtp_server(). This enables more possibilties in regard to
features. Not all features may make sense in a specific setup.

	Best regards
		Franz