Routing postfix through a proxy

Howdy,

I'm using postfix on my mac to send my email through google. I'm
living in a developing country, and the location where I get my
internet access has been flagged as a spam source by certain filters.
As a result my email is being flagged as spam because it originates
from this source.

Normally, I'd just go talk to the network admin, have them find the
computers pushing out the spam, and fix the problem. However, that
process could take quite a while to work out. I'm looking for a
solution that I can implement in the mean time. I have a socks 5 proxy
established over an ssh connection to a computer in the states. I'd
like to route my email through that connection to avoid being flagged
as spam. My problem is that I have no idea how to go about this.

Can someone make a suggestion how I can implement this and/or possibly
point me to a howto?

Thanks.

Am Fri, 13 Jul 2007 13:34:57 -0700 schrieb john.m.harrold:

> Howdy,
>
> I'm using postfix on my mac to send my email through google. I'm living
> in a developing country, and the location where I get my internet access
> has been flagged as a spam source by certain filters. As a result my
> email is being flagged as spam because it originates from this source.
>
> Normally, I'd just go talk to the network admin, have them find the
> computers pushing out the spam, and fix the problem. However, that
> process could take quite a while to work out. I'm looking for a solution
> that I can implement in the mean time. I have a socks 5 proxy
> established over an ssh connection to a computer in the states. I'd like
> to route my email through that connection to avoid being flagged as
> spam. My problem is that I have no idea how to go about this.
>
> Can someone make a suggestion how I can implement this and/or possibly
> point me to a howto?
>
> Thanks.

Why not simply using relayhost [1] with your ISP's MTA?

Alexander

[1] http://www.postfix.org/postconf.5.html#relayhost

> Why not simply using relayhost [1] with your ISP's MTA?
>
> Alexander
>
> [1]http://www.postfix.org/postconf.5.html#relayhost

Since my ISP is being flagged as spam, wont I still having the same
problem? I must admit that my knowledge of this subject matter is very
limited.

Hi

john.m.harrold@gmail.com schrieb:
>> Why not simply using relayhost [1] with your ISP's MTA?
>>
>> [1]http://www.postfix.org/postconf.5.html#relayhost
>
> Since my ISP is being flagged as spam, wont I still having the same
> problem? I must admit that my knowledge of this subject matter is very
> limited.

You are right. Relaying mail through a host which is blacklisted is
not a good idea. All the receiving hosts, which check those blacklists,
will refuse to accept your mail.

Otherwise the technique works beautifully.

VR

john.m.harrold@gmail.com wrote:
>> Why not simply using relayhost [1] with your ISP's MTA?
>>
>> Alexander
>>
>> [1]http://www.postfix.org/postconf.5.html#relayhost
>
> Since my ISP is being flagged as spam, wont I still having the same
> problem? I must admit that my knowledge of this subject matter is very
> limited.
>
Is your ISP's whole domain blacklisted or just the range of IPs they
hand out to their users?

Its fairly common for the user range to be blacklisted, sometimes its
even at the ISP's request, or so I'm lead to believe. In this case
there's no reason not to use the ISP's SMTP server as your relay_host

OTOH if the whole ISP domain is blacklisted it may be time to find
another ISP. If they are so careless of other Internet users that even
their SMTP server gets blacklisted what does that say about their
attitude to their own users?


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
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