Re: Some email bounces = misconfigured exim?
George Bonser writes:
> In other words, the host you are saying in your HELO is a valid MX host
> for your IP address.
Yes, of course it is. I'm talking to my ISP's mail server.
> Yes there is if you ever want a bounce to get to the right place. Bounce
> messages use the envelop sender, not the From: or Replay-To:
That's what I thought I said: the mail will be delivered, but bounces may
not come back. I consider that a minor annoyance. Your mileage may vary.
> When their root@sympatico.com mailbox starts filling with bounce
> messages...
I thought it was fairly obvious that one should not use names such as
'root' and 'postmaster'. Best to use the username the ISP gave you.
> ...or their double-bounce message box starts collecting things, they
> might notice.
I have yet to hear a complaint from BrightNet.
> Just send the mail through the ISP's mail server instead of trying to
> deliver it direct. It will save you a LOT of bandwidth.
Of course send the mail through the ISP's mail server. When did I say
otherwise?
> Also, what happens when you want to send mail at another sympatico.com
> user that is not on your box?
Sending mail to win.bright.net addresses works just fine. Why would it
not? win.bright.net certainly won't resolve locally.
> It is just a BAD IDEA to try to make your box think it is your ISP.
That is not what I am doing. I am telling my MTA to tell BrightNet's mail
server that my box is a host in BrightNet's domain. And that is true. On
BrightNet's network, to which I am connected via ppp, I have an FQDN of
something like elk-iqx2-cs-32.win.bright.net.
> No, it is better to use a visible name ofg a valid MX host for your IP
> address, MOST mailers will accept that, some will not.
What would be best is to use <user>@dhh.gt.org. That is a valid domain,
but BrightNet's anti-relay stuff won't let me use it. Next best would be
my BrightNet address: jghasler@win.bright.net. Smail won't do that either
(or at least, I don't know how to make it). It insists on prepending the
user name to whatever I put in visible_name and using the result as the
reverse_path. The mail still goes out, but the reverse_path is not valid.
Maybe exim.
> No that is NOT what will happen. If user foo sends mail, a bounce will
> try to go to foo@sympatico.com which might not exist.
Not if he can make his MTA use a reverse_path of genkin@sympatico.ca for
all users.
> To try to hack ALL senders to one address is foolish.
But I only HAVE one address. I WANT all bounces to go to
jghasler@win.bright.net.
> It is a lot easier to do it right.
What's right?
> Just send the mail through the ISP's mail server instead of trying to
> deliver it direct.
Did I ever say otherwise? That is just what I am doing. If I could
deliver direct I'd set visible_name to dhh.gt.org and be happy.
> Using a service such as dhs you can map a hostname (which is free) to
> your dynamic IP address.
How would that help?
--
John Hasler This posting is in the public domain.
john@dhh.gt.org Do with it what you will.
Dancing Horse Hill Make money from it if you can; I don't mind.
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