Mailinglist Archive: opensuse (3337 mails)

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Re: [SLE] OT: Posting from another unsubscribed address for a subscriber?
  • From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
  • Date: Sat, 15 Apr 2006 21:18:58 +0200 (CEST)
  • Message-id: <Pine.LNX.4.61.0604152107180.27297@xxxxxxxxxxxxxxxx>
Hash: SHA1

The Saturday 2006-04-15 at 13:13 +0200, Hylton Conacher (ZR1HPC) wrote:

> > > > When I send email from any one of the three email addresses I
> > > > have, it will all be delivered regardless of the sending email
> > > > address?
> >
> > Pardon?
> Ok, more explanation follows:
> I have a Tiscali dialup account that includes a single email address on their
> network. I also have a GMail account and another email address on my own
> domain. So in essence I have a single dialup connection but have configured
> Mozilla to allow me to send email from either of the three email addresses I
> have.
> The unfortunate thing is/possibly was, was that any mail sent from any of the
> email addresses I own had to be delivered by the tiscali SMTP server. Tiscali,
> in all their wisdom, seemed to decide that they would not send email from
> another domain if they received it from a client connected to their network ie
> I dial into them and am therefore allowed to send email from the email account
> they gave me but it seems not from another domain email address ie
> hylton@xxxxxxxxxxxxxxx

Ah, yes, I understand. The funny thing is that dialup allows
sending email with any address in the from field, with no authentication
method, BUT! You have to be connected with an IP of theirs. On the other
hand, if my IP belongs to another network, they do not allow me to send
even if my from is Absurd.

By the way, is out of business. They sold their customers et
al to "Wanadoo" (France Telecom EspaƱa S.A).

On the other hand, (my other dialup provider) requires you to
authenticate, an will not allow you to send with any "from" except

I haven't yet learnt what my current provider does.

So, yes, I understand your problem. That's the main reason I use postfix
to send directly.

> Seems most strange as I thought SMTP servers were merely mail relays between
> hosts who didn't initially confirm the authentication of the sender.

No, an smtp that does relay has to authenticate. The only one that
doesn't is the destination server of the email.

It's a measure to hamper somehow the indiscriminate sending of spam
through any smtp server. If you have to authenticate, you are
accountable for what you send and can be sued.

- --
Carlos Robinson
Version: GnuPG v1.4.0 (GNU/Linux)
Comment: Made with pgp4pine 1.76

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