Re: your message could not,be delivered to one or more recipients.

[Jean-David Beyer]

On 11/17/2017 03:09 AM, Werner Koch wrote:
> On Thu, 16 Nov 2017 17:56, w...@uter.be said:
> 
>> Alternatively, AOL might be trying to send the mail from a different
> 
> Very likely - greylistd comes with a list of whitelisted AOL server
> pools.  204.29.186.0/24 is not yet in this list - I added it to the
> local installations.
> 
> 
> Salam-Shalom,
> 
>Werner
> 
Thank you.

I used to use Verizon as my SMTP provider, but when they bought AOL,
they discontinued serving e-mail and transferred everything to AOL's
servers. I usually have no trouble posting to

gnupg-users@gnupg.org

but that one did not go through.

Yesterday, I did a whois on 204.29.186.9 and it came up as AOL, but AOL
for the .ru area (it came up with other areas where presumably AOL
serves). But today there seems to be only the main entry in Dulles, VA.

If someone had been messing with the DNS, no wonder gnupg.org would be
suspicious.

Right now everything looks OK.

$ dig -x 204.29.186.9

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.4 <<>> -x 204.29.186.9
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63531
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;9.186.29.204.in-addr.arpa. IN  PTR

;; ANSWER SECTION:
9.186.29.204.in-addr.arpa. 300  IN  PTR omr-m007e.mx.aol.com.

;; AUTHORITY SECTION:
186.29.204.in-addr.arpa. 3600   IN  NS  dns-07.ns.aol.com.
186.29.204.in-addr.arpa. 3600   IN  NS  dns-02.ns.aol.com.
186.29.204.in-addr.arpa. 3600   IN  NS  dns-01.ns.aol.com.
186.29.204.in-addr.arpa. 3600   IN  NS  dns-06.ns.aol.com.

;; ADDITIONAL SECTION:
dns-01.ns.aol.com.  126866  IN  A   64.12.51.132
dns-02.ns.aol.com.  126866  IN  A   205.188.157.232
dns-07.ns.aol.com.  126866  IN  A   64.236.1.107
dns-06.ns.aol.com.  126866  IN  A   207.200.73.80

;; Query time: 123 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri Nov 17 08:53:27 2017
;; MSG SIZE  rcvd: 228


-- 
  .~.  Jean-David Beyer  Registered Linux User 85642.
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 /( )\ Shrewsbury, New Jerseyhttp://linuxcounter.net
 ^^-^^ 08:35:01 up 2 days, 15:50, 2 users, load average: 4.42, 4.27, 4.14



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Re: your message could not,be delivered to one or more recipients.

[Werner Koch]

On Thu, 16 Nov 2017 17:56, w...@uter.be said:

> Alternatively, AOL might be trying to send the mail from a different

Very likely - greylistd comes with a list of whitelisted AOL server
pools.  204.29.186.0/24 is not yet in this list - I added it to the
local installations.


Salam-Shalom,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.


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Re: your message could not,be delivered to one or more recipients.

[Wouter Verhelst]

On Thu, Nov 16, 2017 at 04:22:30PM +0100, Peter Lebbing wrote:
> On 16/11/17 14:55, Jean-David Beyer wrote:
> > From where does it get port 451? My SMTP port is 465
> > 204.29.186.9 is my ISP for e-mail: AOL.
> 
> It's probably not a port. Note that the port 465 you are using to submit
> mail has nothing to do with how mail is delivered from there on. Port
> 465 is never used between mail servers[1].
> 
> It's probably SMTP status code 451, which is a temporary error message
> inviting the sending server to try again at a later time. Combined with
> the error message, I'm inclined to think it's a greylisting system on
> the receiving server. But apparently your ISP's mail server has given up
> on trying to deliver it and bounced it to you. Either your ISP is giving
> up too soon, or the receiving server is holding it off for too long. The
> latter might be because of a configuration error.

Alternatively, AOL might be trying to send the mail from a different
server every time. If the receiving server does implement graylisting,
then every time it sees a new IP address, sends it a 4xx status, and
waits for it to reappear. Only when it does reappear the IP address is
new, so it graylists again. Rince, repeat.

-- 
Could you people please use IRC like normal people?!?

  -- Amaya Rodrigo Sastre, trying to quiet down the buzz in the DebConf 2008
 Hacklab

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Re: your message could not,be delivered to one or more recipients.

[Peter Lebbing]

On 16/11/17 14:55, Jean-David Beyer wrote:
> From where does it get port 451? My SMTP port is 465
> 204.29.186.9 is my ISP for e-mail: AOL.

It's probably not a port. Note that the port 465 you are using to submit
mail has nothing to do with how mail is delivered from there on. Port
465 is never used between mail servers[1].

It's probably SMTP status code 451, which is a temporary error message
inviting the sending server to try again at a later time. Combined with
the error message, I'm inclined to think it's a greylisting system on
the receiving server. But apparently your ISP's mail server has given up
on trying to deliver it and bounced it to you. Either your ISP is giving
up too soon, or the receiving server is holding it off for too long. The
latter might be because of a configuration error.

The mail I'm replying to got through, though.

I have to admit the formatting of the message with the 451 code was
pretty odd, "deliver mail from 451 " like the
451 is somehow part of the address. Weird.

HTH,

Peter.

[1] Unless someone explicitly configures two mail servers to chat to
each other on that port because... well, because they wanted to do that.
A mail server can be configured to inscribe your mail on a stone with a
chisel if you configure it to do so, but that doesn't mean it's a normal
thing to do.

-- 
I use the GNU Privacy Guard (GnuPG) in combination with Enigmail.
You can send me encrypted mail if you want some privacy.
My key is available at 



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your message could not,be delivered to one or more recipients.

[Jean-David Beyer]

This is the mail system at host omr-m007e.mx.aol.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

   The mail system

: host kerckhoffs.g10code.com[217.69.77.222] said:
451-204.29.186.9 is not yet authorized to deliver mail from 451
 to . Please try
later. (in
reply to RCPT TO command)

_

Reporting-MTA: dns; omr-m007e.mx.aol.com
X-Outbound-Mail-Relay-Queue-ID: 58F77380004C
X-Outbound-Mail-Relay-Sender: rfc822; jeandav...@verizon.net
Arrival-Date: Wed, 15 Nov 2017 09:01:43 -0500 (EST)

Final-Recipient: rfc822; gnupg-users@gnupg.org
Original-Recipient: rfc822;gnupg-users@gnupg.org
Action: failed
Status: 4.0.0
Remote-MTA: dns; kerckhoffs.g10code.com
Diagnostic-Code: smtp; 451-204.29.186.9 is not yet authorized to deliver
mail
from 451  to . Please try
later.

__
>From where does it get port 451? My SMTP port is 465
204.29.186.9 is my ISP for e-mail: AOL.

-- 
  .~.  Jean-David Beyer  Registered Linux User 85642.
  /V\  PGP-Key:166D840A 0C610C8B Registered Machine  1935521.
 /( )\ Shrewsbury, New Jerseyhttp://linuxcounter.net
 ^^-^^ 08:40:01 up 1 day, 15:55, 2 users, load average: 4.81, 4.90, 4.72

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