Re: [courier-users] Double bounce

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Hi J=E9r=F4me.

Am Mittwoch, 3. Oktober 2007 schrieb J=E9r=F4me Blion:
> >> So, a mail is going out... and comes back within a nice DSN :) As the
> >> user used to sent the mail does not exist, it does a double bounce.

Why does the user not exist that sends the mail?

I assume that you run Apache with mod_php, if that's not true, there will b=
e a=20
similar way for your setup.

Go to your client's VHost configuration and set this:
php_admin_value mail.force_extra_parameters "-f client@yourhost"
where client@yourhost is your client's e-mail-address.

So your client get's all the bounces and will be forced to do something=20
against the abuse of his board.


> >> Is there an easy way to discard all these mails automatically?

=46or sure, but you just shouldn't want to discard bounces silently.


> Mails are relayed from my box to my provider's one. Now, the request is
> closed on my side.
> My provider's server sends me a DSN...=20

You said your provider does not accept mail that cannot be delivered?


> My server can not deliver it.=20

That's an error in your setup. Just set working return path addresses.


> If it answers 550, we will run in an infinite loop. So, the double bounce
> message is mailed to postmaster (me)

No, it won't.

Two possibilities:

1. your provider does what you tell, it won't accept mail from you it it ca=
n't=20
be delivered. So your provider will never ever originate a DSN becaus eithe=
r=20
the message can be delivered or it can't. Either your mail gets through or=
=20
it's stuck on your machine. Then your courier originates a DSN that cannot =
be=20
delivered and results in a doublebounce to postmaster.

2. Your provider accepts your bounce. A bounce does not hav a return path. =
So=20
if your provider is up to create a double bounce, it won't sent it back to=
=20
you but to their postmaster.

No loop here.


> Is there a way to keep the request opened on my side until the last SMTP
> provides an answer?

Don't know what you mean. A SMTP session is just to one host. It's your=20
provider's choice if there's a check for all recipients or just for the=20
first. I think if they make a check, they'll do it for all recipients.

cu, Bernd

=2D-=20
Was die FSK =FCber den Film aussagt:
FSK12: Der Held kriegt das M=E4dchen
FSK14: Der B=F6se kriegt das M=E4dchen
FSK18: Jeder kriegt das M=E4dchen

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