From: Lefteris Tsintjelis (leftyasda.gr)
Date: Mon Aug 02 2010 - 18:06:16 CDT

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On Aug 2, 2010, at 10:47 am, Lefteris Tsintjelis wrote:

> On Aug 2, 2010, at 3:59 am, Phill Macey wrote:
>
>> On 2 August 2010 10:10, Lefteris Tsintjelis <leftyasda.gr> wrote:
>>> This warning does not make any sense at all since there is no such thing listed in mydestination. Any ideas?
>>>
>>> postfix/trivial-rewrite[7525]: warning: do not list domain mx.asda.gr in BOTH mydestination and virtual_mailbox_domains
>>>
>>> # postconf | grep mydest
>>> mydestination = localhost.asda.gr, localhost
>>>
>>
>> What about 'postconf | grep virtual_mailbox_domains'. I will not be
>> able to answer your question but it might be useful for other people
>> to know.
>
> # postconf | grep virtual_mailbox_domains
> virtual_mailbox_domains = proxy:mysql:$config_directory/maps/virtual_mailbox_domains.mysql
>
> # postmap -q "mx.asda.gr" mysql:/etc/postfix/maps/virtual_mailbox_domains.mysql
> mx.asda.gr
>
> It is listed as should. The weird thing is that the warning shows up rarely in the logs, maybe something like once a day.

I believe I found a way to always reproduce the same invalid warning by sending an email to myself from an unauthorized server:

Logs:

Aug 3 01:43:50 mx postfix/smtpd[28245]: connect from rosebud.otenet.gr[83.235.67.42]
Aug 3 01:43:50 mx postfix/smtpd[28245]: NOQUEUE: filter: RCPT from rosebud.otenet.gr[83.235.67.42]: <rosebud.otenet.gr[83.235.67.42]>: Client host triggers FILTER dspam:dspam; from=<leftyasda.gr> to=<leftyasda.gr> proto=ESMTP helo=<rosebud.otenet.gr>
Aug 3 01:43:51 mx postfix/smtpd[28245]: 047F426A093: client=rosebud.otenet.gr[83.235.67.42]
Aug 3 01:43:51 mx postfix/cleanup[28390]: 047F426A093: message-id=<201008022243.o72Mgw9F027185rosebud.otenet.gr>
Aug 3 01:43:51 mx dkim-filter[12507]: 047F426A093 external host rosebud.otenet.gr attempted to send as asda.gr
Aug 3 01:43:51 mx dkim-filter[12507]: 047F426A093 rejected per sender domain policy
Aug 3 01:43:51 mx postfix/cleanup[28390]: 047F426A093: milter-reject: END-OF-MESSAGE from rosebud.otenet.gr[83.235.67.42]: 5.7.1 rejected due to DKIM ADSP evaluation; from=<leftyasda.gr> to=<leftyasda.gr> proto=ESMTP helo=<rosebud.otenet.gr>

Aug 3 01:43:51 mx postfix/trivial-rewrite[28372]: warning: do not list domain mx.asda.gr in BOTH mydestination and virtual_mailbox_domains

Aug 3 01:43:51 mx postfix/smtpd[28245]: NOQUEUE: filter: RCPT from rosebud.otenet.gr[83.235.67.42]: <rosebud.otenet.gr[83.235.67.42]>: Client host triggers FILTER dspam:dspam; from=<> to=<leftyasda.gr> proto=ESMTP helo=<rosebud.otenet.gr>
Aug 3 01:43:51 mx postfix/smtpd[28245]: 1144D26A093: client=rosebud.otenet.gr[83.235.67.42]
Aug 3 01:43:51 mx postfix/smtpd[28245]: 1144D26A093: reject: END-OF-MESSAGE from rosebud.otenet.gr[83.235.67.42]: 550 5.5.3 <END-OF-MESSAGE>: End-of-data rejected: Multi-recipient bounce; from=<> to=<leftyasda.gr> proto=ESMTP helo=<rosebud.otenet.gr>
Aug 3 01:43:51 mx postfix/cleanup[28390]: 1144D26A093: message-id=<201008022243.o72Mhp9F027482rosebud.otenet.gr>
Aug 3 01:43:51 mx postfix/smtpd[28245]: disconnect from rosebud.otenet.gr[83.235.67.42]

# dig txt _adsp._domainkey.asda.gr

; <<>> DiG 9.7.0-P1 <<>> txt _adsp._domainkey.asda.gr
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51964
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;_adsp._domainkey.asda.gr. IN TXT

;; ANSWER SECTION:
_adsp._domainkey.asda.gr. 172800 IN TXT "dkim=discardable"

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