Evolution send mail though proxy setting, how to? -- 2.26.1 still doesn't work!

[Derek Broughton]

Christopher Chan wrote:

> 
>>> Why do you think the submission port (587) exists?
>>>     
>>
>> Why do you think the client would know or care?
>>
>>   
> Are we still talking about MUAs here? Or are you now including scripts
> and whatever else that can submit emails?
> 
Sorry, that's _my_ sloppy usage.  In this case, by client, I meant my 
_customer_ - who doesn't have a clue how to properly configure their own 
network.  While they redirect all port 25 connections to their own server, 
they don't have a clue what port 587 is for and just block it (along with 
practically everything except 21, 22, 80 and 443).

>> No, it doesn't, but if it's sitting between your client and a valid SMTP
>> server, it doesn't need to.
>>
>>   
> Then a proxy server does not follow the rules of mail delivery. 

Of course it doesn't - that's the nature of proxies.  They accept a 
connection at one end, perform some action, and send the data on (possibly 
transformed).

> It
> cannot be configured to do whatever it is configured to do as you
> assert. It does what the email client asks it to do.

Then you and I seem to have a fundamental difference of opinion on what a 
proxy _is_, because I disagree that the client usually has any control.  All 
it ever knows is that "instead of connecting to socket X, I connect to 
socket Y, and add the information of how the proxy should find X".

>> It's my own proxy, and it _doesn't_ have smtp smarts - it just knows
>> enough to choose which smarthost to connect to.
>>   
> Sorry, that does not make sense. The smarthost is defined by the email
> client and the request for a connection to the smarthost is done by the
> email client. The proxy makes no decision on that. If it does not have
> smtp smarts, it knows nothing. Nice try passing off 'my own proxy' as an
> answer.

My email client knows where it should send mail.  When I'm at home, that's 
where it goes.  When I'm at the client's, it gets routed through an ssh 
tunnel or through the client's SMTP server.  The proxy _did_ make a decision 
on that, so you can tell me it makes no sense all you want, but it works, 
it's fundamentally proper SMTP and the proxy needs to know nothing about 
SMTP.  It needs to recognize _one_ header (the first), but that doesn't mean 
it has "smtp smarts".

> I am sorry, but the mail admins on spam-l including those who run the
> servers for outfits like Roadrunner, AOL, name-your-US-isp will disagree
> with you and some even have systems that run probes to on connecting
> hosts to check for non MTA software and you can guess what they do with
> the results.

I know what they do - and any mail you get from me would come through gmail 
(also my mx) so it's not a problem.
-- 
derek