Date: Mon, 26 Nov 2007 13:15:59 +0200 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: "Aryeh M. Friedman" <aryeh.friedman@gmail.com> Cc: Jeremy Chadwick <koitsu@freebsd.org>, freebsd-questions@freebsd.org Subject: Re: Getting around ISP SMTP firewall settings (Re: Submitting a new port if send-pr is broken) Message-ID: <20071126111559.GB2283@kobe.laptop> In-Reply-To: <474A8B44.1010909@gmail.com> References: <474A577F.3090307@gmail.com> <20071126054636.GA5961@eos.sc1.parodius.com> <474A8B44.1010909@gmail.com>
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On 2007-11-26 04:00, "Aryeh M. Friedman" <aryeh.friedman@gmail.com> wrote:
>BTW I a redirected this to -questions
>> You should be able to set up a local mailer/MTA (sendmail, postfix,
>> etc.) and tell it to use your ISP's mail server on TCP port 25, and
>> it all should just "magically work" unless they require SMTP AUTH
>> (not many do from what I've seen; they base authentication on the
>> source IP of customers).
>>
>> sendmail refers to this feature as SMART_HOST, while postfix refers
>> to it as a transport destination (see transport(5)).
>
> I have not set the MTA up yet for it but I did test it with
> thunderbird... an other question how can I set it up that I can
> receive mail (dynamic IP and 25 inbound is blocked)?
Thunderbird doesn't necessarily go through an SMTP connection to the
local host, so it may work with or without a local MTA installation &
setup (depending on which host you forward outgoing email).
If you set up Thunderbird to use `localhost' for outgoing email, then
you have to also configure a local MTA (Sendmail, Postfix, or qmail are
popular choices).
I don't think there's an easy way to set up the local Sendmail
installation to *receive* email from the world without some sort of
`static address' though. To do that, you would have to work with your
ISP, so that:
* Your address does not change semi-randomly or ramdonly.
* Your fully qualified domain resolves correctly and its MX records
point to your static IP address.
* Your incoming port 25 traffic is not filtered.
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