Re: WOMailDelivery outside the firewall
Re: WOMailDelivery outside the firewall
- Subject: Re: WOMailDelivery outside the firewall
- From: David Griffith <email@hidden>
- Date: Tue, 20 Apr 2004 21:30:01 +0200
> On Tue, 20 Apr 2004, David Griffith wrote:
>
>> Yes, Jonathan is right, you will need access to an SMTP server. If you have
>> OS X Server, you should be able to switch on the mail server
>
> If it's localhost, you shouldn't need to do this. Really.
Depends who you are sending the mail to :-) Of course, if it's only going
to your own network that's fine. If it's going outside your network (as
most mail does) then how is sendmail going to get it there? Does it
actually do DNS lookups and forward it directly to the receiving SMTP server
of the domain you are sending to? If not, it will have to be relayed
somehow, via an ISP that will relay it for you (ALL relaying is not bad,
many ISP's still use relaying from specific domains or IP's) or via your own
mail server that will send it directly to the receiving host domain. Some
mail servers do not do that, hence the need to relay via an ISP.
>
>> but you will
>> still have to configure it to send mail to a relay
>
> No, relaying is only needed if the first receiving SMTP server is of a
> different domain/host than the person sending OR receiving the mail. If
> the localhost is sending mail, no mail server needs to have relaying set.
>
> Please do NOT turn relaying on ANY mail server unless you fully understand
> the consequences.
I agree - I wasn't suggesting that he turn on relaying on his own server,
but to pass it to a legitimate mail relay which may be the case if they are
using an ISP - I don't know their setup.
>
>> - it has to have some way of passing it on.
>
> Which is what sendmail does even if it's run as a standalone. Oddly, it
> sends mail.
>
Of course, but how and to where? I don't use sendmail so I'm not certain
what it does, but I imagine it's fairly basic.
>> Unless it sends mail directly to other servers, I haven't
>> used it so I'm not sure. If your mail server behind the firewall is
>> configured to forward mail to a relay,
>
> Not necessary. It can send it directly IF the firewall permits that. Even
> if it doesn't, you should be able to send mail directly to some user on
> the localhost without having a) a running mail server; or b) any other
> configuration whatsoever.
>
Yes I guess you could, but I don't think that's what he's trying to do. I
got the impression he was trying to send mail outside of their own network
(as is normal). Perhaps I'm wrong.
> In terms of testing a WO app, that should suffice.
>
> As soon as I recover from The Massive DB project, I'll probably write a
> little example and post it.
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