Andrew Cullen <[EMAIL PROTECTED]> wrote:
>
> My ISP has recently blocked all outgoing port 25 connections and=20
> funneled them through their own SMTP server. No problem . I added=20
> a wildcard to my smtproutes to shoot all my mail to that machine. But=20
> now my mailadmin account keeps filling up with double bounces like this
>
> Hi. This is the qmail-send program at cullenfamily.ca.
> I tried to deliver a bounce message to this address, but the bounce=20
> bounced!
>
> <[EMAIL PROTECTED]>:
> 209.226.175.81 does not like recipient.
> Remote host said: 550 relaying mail to ieee.org is not allowed
> Giving up on 209.226.175.81.
[...]
> It won't relay any of my outgoing bounces but If I just use this as my=20
> SMTP server for outgoing mai,.with PINE for example, there is no =
> problem, all my=20
> mail goes through.
>
> Can anyone explain what is going on and how do I fix it?
At a guess, your ISP is refusing to relay mail with an empty envelope
sender (all bounces are required to have an empty envelope sender).
Therefore, you can't send bounces.
How to fix? Ask them to fix their broken setup, if you can verify this
is what is happening. If they won't, change ISPs.
To verify, telnet to their SMTP relay and try combinations of empty- and
non-empty envelope sender addresses with recipient addresses you know
work/don't work, and note the responses.
Charles
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Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
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