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Re: problem e-mailing debian groups

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  Re: problem e-mailing debian groups Steve Kleene <skdeb@syrano.acb.uc.edu> - 2015-11-14 02:20 +0100
    Re: problem e-mailing debian groups Joe <joe@jretrading.com> - 2015-11-14 10:10 +0100

#160543 — Re: problem e-mailing debian groups

References: <loom.20151113T203945-101@post.gmane.org>,
<20151113221430.GV4773@geta>, <564683BF.1050903@meetinghouse.net>

>>>On Fri, 13 Nov 2015 19:41:14 +0000 (UTC), I wrote:
>>>
>>> Almost five years ago, I became unable to post questions here by e-mail.
 The
>>> e-mail bounces with, for example:
>>>
>>> > The following message to <debian-user@lists.debian.org> was undeliverable.
>>> > The reason for the problem:
>>> > 5.1.0 - Unknown address error 550-'5.1.7
>>> <prvs=752320ad2=skdeb@syrano.acb.uc.edu>: Sender address rejected:
>>> undeliverable address: host syrano.acb.uc.edu[129.137.3.161] said: 550 5.1.1
>>> <prvs=752320ad2=skdeb@syrano.acb.uc.edu>... User unknown (in reply to RCPT
>>> TO comm
>>> > ...

>> On Fri, 13 Nov 2015 16:14:30 -0600, Don Armstrong replied:
>>
>> This is because you are not supporting sender callback verification; the
>> envelope from that you are using needs to be an address which can be
>> received. If not, it's not valid.
>>
>> See https://en.wikipedia.org/wiki/Callback_verification for details

> And on Fri, 13 Nov 2015 19:43:43 -0500, Miles Fidelman wrote:
>
> Well the solution is to have a talk with the mail system admin who
> reconfigured the mail system, and did a half-assed job of it.

Any idea whether this can be fixed at my local mail server (mailto/sendmail)
or whether it has to come from my employer's router?  And any idea why no one
but the debian lists bounces my e-mails?  Is this a level of verification
that almost no one else uses?

Thanks.

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#160557

On Sat, 14 Nov 2015 01:14:47 +0000 (UTC)
Steve Kleene <skdeb@syrano.acb.uc.edu> wrote:


> 
> Any idea whether this can be fixed at my local mail server
> (mailto/sendmail) or whether it has to come from my employer's
> router?  And any idea why no one but the debian lists bounces my
> e-mails?  Is this a level of verification that almost no one else
> uses?
> 

A lot of spam started using the recipient's email address in its
Reply-To, along with a "=".

It was then incredibly easy to filter out...

-- 
Joe

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