Re: Why the name Postfix?

2022-03-29 Thread Eric Smith


Wietse Venema previously_wrote on Mon-28-Mar 22 12:00AM
> external name "Postfix". "post" was a different word for "mail",
> and "fix" was for Sendmail, the inspiration for my efforts.

It is a much cooler sounding name now that its decoded.
But in retrospect the meaning is pretty obvious 臘


Re: not working smtpd_recipient_restrictions implementation - postFIXED!

2021-06-02 Thread Eric Smith
Thank you to all who answered. 
I learnt from each of the three emails.

My config file was seriously wonky (I have become a spam reader -- oh 
and aparrently spam sender) so it took some persuading but at least for 
now this particular dragon is slain.

Wietse, you belong on Mount Olympus.

Best wishes and thanks to all 
Eric


Wietse Venema previously_wrote on Wed-02-Jun 21  7:34PM
> Eric Smith:
> > Dear fixers,
> > 
> > My postfix ability has dissapated over many years without use :-(
> > 
> > I tried and failing to REJECT an unwanted domain from accessing postfix 
> > through this in main.cf
> > 
> > smtpd_recipient_restrictions = permit_mynetworks, 
> 
> Postfix won't reject mail from your network.
> 
> > permit_sasl_authenticated,
> 
> Postfix won't reject mail from an authenticated client.
> 
> > check_sender_access
> > hash:/etc/postfix/sender_access,
> 
> This applies only if the client did not match permit_mynetworks
> and did not match permit_sasl_authenticated.
> 
>   Wietse
> 
> > reject_unauth_destination,
> > reject_rbl_client zen.spamhaus.org,
> > reject_rhsbl_reverse_client dbl.spamhaus.org,
> > ...
> > 
> > 
> > /etc/postfix/sender_access
> > example2.org REJECT
> > unwelcome.tld REJECT
> > END
> > 
> > % postmap /etc/postfix/sender_access
> > 
> > % ls /etc/postfix/sender_access*
> > sender_access sender_access.db
> > 
> > % sudo postfix restart
> > 
> > 
> > I wonder if there are any clues here to what I am doing wrong or where I 
> > might try to fix this.
> > 
> > Thank you in advance and best wishes
> > Eric
> > 


not working smtpd_recipient_restrictions implementation

2021-06-02 Thread Eric Smith
Dear fixers,

My postfix ability has dissapated over many years without use :-(

I tried and failing to REJECT an unwanted domain from accessing postfix 
through this in main.cf

smtpd_recipient_restrictions = permit_mynetworks, 
permit_sasl_authenticated,
check_sender_access
hash:/etc/postfix/sender_access,
reject_unauth_destination,
reject_rbl_client zen.spamhaus.org,
reject_rhsbl_reverse_client dbl.spamhaus.org,
...


/etc/postfix/sender_access
example2.org REJECT
unwelcome.tld REJECT
END

% postmap /etc/postfix/sender_access

% ls /etc/postfix/sender_access*
sender_access sender_access.db

% sudo postfix restart


I wonder if there are any clues here to what I am doing wrong or where I 
might try to fix this.

Thank you in advance and best wishes
Eric


delay all email to a defined sender list

2018-09-14 Thread Eric Smith
Hi List,

It happened just one time too many today, in a rushed moment
sending the wrong email to the wrong person.

Is it possible to exclusively delay sending mail to specific
recipients that appear on in a list? 

This way I suspected such an error of an email to one the special
recipients, then I could still delete the email from the queue.

Best
Eric


configuration of mailman with postfix

2012-07-25 Thread Eric Smith
Hi

I have the following versions mailman 1:2.1.14-3 on postfix 2.9.1-5 and Ubuntu 
12.04 LTS

My installation is for lists on virtual domains
NOT foobar.fruitcom.com
but complete virtual domains, in  this example
foobar.com

When I configure with the following instructions such as this one:
http://free-electrons.com/blog/mailman-howto-ubuntu-10-04/

Postfix reports a warning:
warning: /etc/postfix/main.cf: unused parameter: 
mailman_destination_recipient_limit=1

Mails sent to one of the list commit...@foobar.com give the following error:
|/var/lib/mailman/mail/mailman post committee@fruitcom.com
(expanded from
commit...@foobar.com): unknown user: |/var/lib/mailman/mail/mailman post 
committee

Is there a suggestion to address this particular issue which I
think is the expansion to `committee@fruitcom.com' ,
alternatively, are there other complete configure instructions that might work?

Thanks.

-- 
Best regards,
Eric Smith
Mobile: 00 31 6 455 09313 - Tel Wageningen: +31 317 72


Re: configuration of mailman with postfix

2012-07-25 Thread Eric Smith
Thanks Robert (Scott)

I have upgraded, checked and followed the Ubuntu docs.
transport in master.cf corrected (I had a typo that gave the
error with the user expansion), now it is like this;

[root@pepper ~] $ grep -A1 mailman  /etc/postfix/master.cf
mailman   unix  -   n   n   -   -   pipe
 flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
 ${nexthop} ${user}

$ mutt fres...@fresher2.nl -stest/dev/null;sleep 2;\ 
sudo sh -c find /var/log/ -mmin -1; grep fresher  /var/log/mail.log|tail -1
/var/log/syslog
/var/log/mail.log
/var/log/auth.log
Jul 25 20:45:53 localhost postfix/local[10429]: 70E4329020F: \ 
to=|/var/lib/mailman/mail/mailman post fres...@fruitcom.com, \ 
orig_to=fres...@fresher2.nl, relay=local, delay=0.17, \ 
delays=0.11/0/0/0.06, dsn=5.1.1, status=bounced (unknown user: \
|/var/lib/mailman/mail/mailman post fresher)

FWIW:
[eric@pepper ~] $ echo $HOSTNAME
pepper.fruitcom.com

(Tooth enamel wearing a bit thin)

Any ideas where I could look?

-- 
Eric Smith

Robert Schetterer wrote on Wed-25-Jul 12  2:36PM
 Am 25.07.2012 14:30, schrieb Eric Smith:
  Hi
  
  I have the following versions mailman 1:2.1.14-3 on postfix 2.9.1-5 and 
  Ubuntu 12.04 LTS
  
  My installation is for lists on virtual domains
  NOT foobar.fruitcom.com
  but complete virtual domains, in  this example
  foobar.com
  
  When I configure with the following instructions such as this one:
  http://free-electrons.com/blog/mailman-howto-ubuntu-10-04/
  
  Postfix reports a warning:
  warning: /etc/postfix/main.cf: unused parameter: 
  mailman_destination_recipient_limit=1
  
  Mails sent to one of the list commit...@foobar.com give the following error:
  |/var/lib/mailman/mail/mailman post committee@fruitcom.com
  (expanded from
  commit...@foobar.com): unknown user: |/var/lib/mailman/mail/mailman 
  post committee
  
  Is there a suggestion to address this particular issue which I
  think is the expansion to `committee@fruitcom.com' ,
  alternatively, are there other complete configure instructions that might 
  work?
  
  Thanks.
  
 looks to me ,like you miss mailman in the transport table
 
 
 look
 
 https://help.ubuntu.com/community/Mailman
 
 ---snip
 Associate the domain lists.example.com to the mailman transport with the
 transport map. Edit the file /etc/postfix/transport:
 
 lists.example.com  mailman:
 ---snipend
 
 then mailman_destination_recipient_limit=1 should work unless there
 arent any more failures
 
 
 http://www.postfix.org/postconf.5.html#transport_destination_recipient_limit
 
 -snip
 transport_destination_recipient_limit (default:
 $default_destination_recipient_limit)
 
 A transport-specific override for the
 default_destination_recipient_limit parameter value, where transport is
 the master.cf name of the message delivery transport.
 
 Note: some transport_destination_recipient_limit parameters will not
 show up in postconf command output before Postfix version 2.9. This
 limitation applies to many parameters whose name is a combination of a
 master.cf service name and a built-in suffix (in this case:
 _destination_recipient_limit).
 --snipend
 
 -- 
 Best Regards
 MfG Robert Schetterer


receiving yahoo mails fails every so often

2011-07-21 Thread Eric Smith
]: match_list_match: 
nm1-vm0.bullet.mail.ne1.yahoo.com: no match
Jul 21 09:15:55 loki postfix/smtpd[23510]: match_list_match: 98.138.91.74: no 
match
Jul 21 09:15:55 loki postfix/smtpd[23510]: send attr request = disconnect
Jul 21 09:15:55 loki postfix/smtpd[23510]: send attr ident = smtp:98.138.91.74
Jul 21 09:15:55 loki postfix/smtpd[23510]: private/anvil: wanted attribute: 
status
Jul 21 09:15:55 loki postfix/smtpd[23510]: input attribute name: status
Jul 21 09:15:55 loki postfix/smtpd[23510]: input attribute value: 0
Jul 21 09:15:55 loki postfix/smtpd[23510]: private/anvil: wanted attribute: 
(list terminator)
Jul 21 09:15:55 loki postfix/smtpd[23510]: input attribute name: (end)
Jul 21 09:15:55 loki postfix/smtpd[23510]: lost connection after CONNECT from 
nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]
Jul 21 09:15:55 loki postfix/smtpd[23510]: disconnect from 
nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]



==



Successful Connection:

Jul 21 11:26:09 loki postfix/smtpd[25203]: connect from 
nm25.bullet.mail.ac4.yahoo.com[98.139.52.222]
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostname: 
nm25.bullet.mail.ac4.yahoo.com ~? 192.168.1.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostaddr: 98.139.52.222 ~? 
192.168.1.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostname: 
nm25.bullet.mail.ac4.yahoo.com ~? 192.168.2.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostaddr: 98.139.52.222 ~? 
192.168.2.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostname: 
nm25.bullet.mail.ac4.yahoo.com ~? 12.19.144.48/28
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostaddr: 98.139.52.222 ~? 
12.19.144.48/28
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostname: 
nm25.bullet.mail.ac4.yahoo.com ~? 192.168.5.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_hostaddr: 98.139.52.222 ~? 
192.168.5.0/24
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_list_match: 
nm25.bullet.mail.ac4.yahoo.com: no match
Jul 21 11:26:09 loki postfix/smtpd[25203]: match_list_match: 98.139.52.222: no 
match
Jul 21 11:26:09 loki postfix/smtpd[25203]: send attr request = connect
Jul 21 11:26:09 loki postfix/smtpd[25203]: send attr ident = smtp:98.139.52.222
Jul 21 11:26:09 loki postfix/smtpd[25203]: private/anvil: wanted attribute: 
status
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute name: status
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute value: 0
Jul 21 11:26:09 loki postfix/smtpd[25203]: private/anvil: wanted attribute: 
count
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute name: count
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute value: 1
Jul 21 11:26:09 loki postfix/smtpd[25203]: private/anvil: wanted attribute: rate
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute name: rate
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute value: 1
Jul 21 11:26:09 loki postfix/smtpd[25203]: private/anvil: wanted attribute: 
(list terminator)
Jul 21 11:26:09 loki postfix/smtpd[25203]: input attribute name: (end)
Jul 21 11:26:09 loki postfix/smtpd[25203]:  
nm25.bullet.mail.ac4.yahoo.com[98.139.52.222]: 220 mail.techsoft3d.com ESMTP 
Postfix
Jul 21 11:26:09 loki postfix/smtpd[25203]: watchdog_pat: 0x7ffdf3b7c050
Jul 21 11:26:09 loki postfix/smtpd[25203]:  
nm25.bullet.mail.ac4.yahoo.com[98.139.52.222]: HELO 
nm25.bullet.mail.ac4.yahoo.com


eric


eric smith
senior network administrator

http://www.techsoft3d.com
email: e...@techsoft3d.commailto:e...@techsoft3d.com
skype: eric_ae_smith
phone: 510-333-1729



Re: receiving yahoo mails fails every so often

2011-07-21 Thread Eric Smith
The problem is this yahoo and yahoo alone fails to make connections, the
problem is random,most emails come through just fine, the specific
failures are not repeatable. But an parker of ours uses yahoo business
serves for their email, they are getting timeout bounces on 1 in 10 emails
sent to us.

That is the best description that I have for this issue.

As for the verboseness I added this debug_peer_list = yahoo.com to
main.cf. It fails with this off as well.

If its a local disk race condition why only yahoo and not any other
domain. If its DNS issue, why yahoo and no other domain?

I had thought that its a firewall mucking the TCP packets, no avail.

So I am probably missing something in either my setup or in the log file
hence why its included.

Thanks,

eric


eric smith
senior network administrator



http://www.techsoft3d.com
email: e...@techsoft3d.com
skype: eric_ae_smith
phone: 510-333-1729







On 7/21/11 11:46 AM, Victor Duchovni victor.ducho...@morganstanley.com
wrote:

On Thu, Jul 21, 2011 at 06:39:58PM +, Eric Smith wrote:

 Hi All,
 
 Here is a strange issue, incoming mail for yahoo fails roughly every
10th time. Also this is (reportedly) only happening to yahoo emails, all
other email domains come through just fine.
 
 The setup is on ubuntu 10.4 LTS with the standard packages, postfix,
clamav, amavis and spamassassin.
 
 I have tried many different solutions, TCP_window size is set to 64,
300 smtp process's is the limit, the system is not being overloaded. I
also have worked with Sonicwall to make sure that the TCP packets are
not getting munged.
 
 Any thoughts?

You have failed to describe the problem.

 Failed connection:
 
 Jul 21 09:15:55 loki postfix/smtpd[23510]: connect from
nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]
 Jul 21 09:15:55 loki postfix/smtpd[23510]: match_hostname:
nm1-vm0.bullet.mail.ne1.yahoo.com ~? 192.168.1.0/24

Why is verbose logging enabled, turn it off.

 Jul 21 09:15:55 loki postfix/smtpd[23510]: 
nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]: 220 mail.techsoft3d.com
ESMTP Postfix
 Jul 21 09:15:55 loki postfix/smtpd[23510]: smtp_get: EOF

Yahoo dropped the connection, probably before you even accepted it. With
verbose logging slowing down your server, it may take too long from TCP
3-way handshake until a Postfix smtpd is ready to process it.

 Jul 21 09:15:55 loki postfix/smtpd[23510]: lost connection after
CONNECT from nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]
 Jul 21 09:15:55 loki postfix/smtpd[23510]: disconnect from
nm1-vm0.bullet.mail.ne1.yahoo.com[98.138.91.74]

First turn off verbose logging. Then make sure your syslog is not
doing synchronous writes to disk for every log message. Then see whether
you still have a problem.

Yahoo is timing out you server. Perhaps your DNS is also slow.

-- 
   Viktor.



Re: receiving yahoo mails fails every so often

2011-07-21 Thread Eric Smith
Damn that was what I was afraid ofŠ..

Let see where that rabbit hole brings us, and thank you.

Best

eric


eric smith
senior network administrator



http://www.techsoft3d.com
email: e...@techsoft3d.com
skype: eric_ae_smith
phone: 510-333-1729







On 7/21/11 12:00 PM, Jeroen Geilman jer...@adaptr.nl wrote:

On 2011-07-21 20:55, Eric Smith wrote:
 The problem is this yahoo and yahoo alone fails to make connections, the
 problem is random,most emails come through just fine, the specific
 failures are not repeatable. But an parker of ours uses yahoo business
 serves for their email, they are getting timeout bounces on 1 in 10
emails
 sent to us.

 That is the best description that I have for this issue.

 As for the verboseness I added this debug_peer_list = yahoo.com to
 main.cf. It fails with this off as well.

 If its a local disk race condition why only yahoo and not any other
 domain. If its DNS issue, why yahoo and no other domain?

 I had thought that its a firewall mucking the TCP packets, no avail.

 So I am probably missing something in either my setup or in the log file
 hence why its included.

No, the remote SMTP server not connecting to your server is not caused
by your configuration.
Do a tcpdump *on the internet connection*, to see what's what.


-- 
J.




Re: receiving yahoo mails fails every so often

2011-07-21 Thread Eric Smith
This box does one thing only cleans email before forwarding onto an
exchange forest. The system is over kill, quad core intel, 16GB memory,
hdd is a velociraptor. This is for a network on which we get around 1
email every second. System load never gets 0.1. DNS are two servers both
on gigabit on diff networks. All of the body checks are post queue, done
by amavis.

Will check synchronous syslog, but given the lack of load, not that
hopeful.

No its a problem up stream, one that tcpdump will help me get an answer.

Thank you though.

best




eric


eric smith
senior network administrator



http://www.techsoft3d.com
email: e...@techsoft3d.com
skype: eric_ae_smith








On 7/21/11 12:13 PM, Victor Duchovni victor.ducho...@morganstanley.com
wrote:

On Thu, Jul 21, 2011 at 07:05:41PM +, Eric Smith wrote:

 Damn that was what I was afraid of?..
 
  So I am probably missing something in either my setup or in the log
file
  hence why its included.
 
 No, the remote SMTP server not connecting to your server is not caused
 by your configuration.
 Do a tcpdump *on the internet connection*, to see what's what.

Actually, it can be your configuration if low throughput drives up
concurrency to the configured limit, and then connection service latency
climbs.

Poor throughput can be caused by many factors:

- Slow DNS resolution
- Inadequate disk I/O capacity
- Insufficient network bandwidth
- Misconfigured synchronous syslog (default Linux)
- Excessive cleanup header/body checks
- Slow proxy filters
- Slow milters
- Slow policy services
- Slow lookup tables (MySQL, ...)
...

-- 
   Viktor.



return mails received when receiving server implements delay

2011-06-25 Thread Eric Smith
Whenever I send mail to a server implimenting delay, I receive from
MAILER-DAEMON on my own server a mail with body:


This is the mail system at host pepper.fruitcom.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.

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

   The mail system

--@fruitcom.com (expanded from --): bad address syntax

-n...@fruitcom.com (expanded from -N): bad address syntax

-r...@fruitcom.com (expanded from -R): bad address syntax

fail...@fruitcom.com (expanded from failure): unknown user: failure

f...@fruitcom.com (expanded from full): unknown user: full

de...@fruitcom.com (expanded from delay): unknown user: delay

Here are the logs when mailing the postfix list server;
Jun 23 13:30:20 pepper postfix/qmgr[1447]: 500C1290144: 
from=majordomo-ow...@cloud9.net, size=10278, nrcpt=1 (queue active)
Jun 23 13:30:20 pepper postfix/local[4655]: 500C1290144: 
to=e...@fruitcom.com, orig_to=e...@fruitcom.com, relay=local, delay=0.26, 
delays=0.16/0/0/0.09, dsn=2.0.0, status=sent (delivered to command: 
/usr/bin/procmail -a $EXTENSION)
Jun 23 13:30:20 pepper postfix/qmgr[1447]: 500C1290144: removed
Jun 23 13:30:55 pepper postfix/pickup[370]: EE5932901A3: uid=1000 from=eric
Jun 23 13:30:55 pepper postfix/cleanup[4747]: EE5932901A3: 
message-id=mailbox-5944-1308828645-22977@pepper
Jun 23 13:30:55 pepper postfix/qmgr[1447]: EE5932901A3: 
from=e...@fruitcom.com, size=674, nrcpt=8 (queue active)
Jun 23 13:30:56 pepper postfix/error[4639]: EE5932901A3: to=--@fruitcom.com, 
orig_to=--, relay=none, delay=0.03, delays=0.02/0/0/0.01, dsn=5.1.3, 
status=bounced (bad address syntax)
Jun 23 13:30:56 pepper postfix/error[4639]: EE5932901A3: 
to=-n...@fruitcom.com, orig_to=-N, relay=none, delay=0.05, 
delays=0.02/0/0/0.02, dsn=5.1.3, status=bounced (bad address syntax)
Jun 23 13:30:56 pepper postfix/error[4639]: EE5932901A3: 
to=-r...@fruitcom.com, orig_to=-R, relay=none, delay=0.05, 
delays=0.02/0/0/0.03, dsn=5.1.3, status=bounced (bad address syntax)
Jun 23 13:30:56 pepper postfix/local[5493]: EE5932901A3: 
to=fail...@fruitcom.com, orig_to=failure, relay=local, delay=0.06, 
delays=0.02/0.02/0/0.01, dsn=5.1.1, status=bounced (unknown user: failure)
Jun 23 13:30:56 pepper postfix/local[4655]: EE5932901A3: 
to=f...@fruitcom.com, orig_to=full, relay=local, delay=0.06, 
delays=0.02/0.03/0/0.01, dsn=5.1.1, status=bounced (unknown user: full)
Jun 23 13:30:56 pepper postfix/local[4640]: EE5932901A3: 
to=e...@fruitcom.com, orig_to=eric.sm...@trustfood.org, relay=local, 
delay=0.26, delays=0.02/0.01/0/0.22, dsn=2.0.0, status=sent (delivered to 
command: /usr/bin/procmail -a $EXTENSION)
Jun 23 13:30:56 pepper postfix/local[4455]: EE5932901A3: 
to=de...@fruitcom.com, orig_to=delay, relay=local, delay=0.99, 
delays=0.02/0.01/0/0.96, dsn=5.1.1, status=bounced (unknown user: delay)
Jun 23 13:30:58 pepper postfix/smtp[4845]: EE5932901A3: 
to=majord...@cloud9.net, relay=mail.cloud9.net[168.100.1.3]:25, delay=2.9, 
delays=0.02/0.01/0.54/2.3, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 
A5687104C3A)

What should I do to fix this?

Thanks

Eric Smith


Re: return mails received when receiving server implements delay

2011-06-25 Thread Eric Smith

 
 _How_ are you sending these mails? Looking at the above output, this
 looks suspicously like a command line gone wrong, something like
 
 command -- -N -R failure,full,delay recipi...@example.net

Thanks Stefan.

Well done you out me on the right path.

It is this command in my MUA,
set sendmail = /usr/lib/sendmail -oem -oi-f eric.sm...@trustfood.org

It never was a problem with servers implementing delay and now it has
been for the last months, why could that be?

ciao

Eric


Re: return mails received when receiving server implements delay - solved

2011-06-25 Thread Eric Smith
Ah, there was no space between the -oi and the -f.

I broke it trying to impliment it some months ago,
thanks again for solving this irritating mystery.

great.

-- 
- Eric Smith
Eric Smith said:
 
  
  _How_ are you sending these mails? Looking at the above output, this
  looks suspicously like a command line gone wrong, something like
  
  command -- -N -R failure,full,delay recipi...@example.net
 
 Thanks Stefan.
 
 Well done you out me on the right path.
 
 It is this command in my MUA,
 set sendmail = /usr/lib/sendmail -oem -oi-f eric.sm...@trustfood.org
 
 It never was a problem with servers implementing delay and now it has
 been for the last months, why could that be?
 
 ciao
 
 Eric


yahoo sending to me is timing out

2011-06-03 Thread Eric Smith
Hello postfix world,

I seem to be receiving all of my emails excepting some from people who
have emails with yahoo email acounts.They are either taking up to 20 hours
in yahoo's queue or being returned.

The postfix is a spam filter (amavis/clamscan/SA) for an exchange forest
of 55 users, not many, so not much of a load. I am not getting any reports
from other legitimate domains sending us emails having this issue. I have
tried a bunch of things found on the internet, but the errors still exist.
This was not a problem on my prior filter build on postfix 2.2.10. I had
generally ignored such errors as my thinking was that these were caused by
poorly designed bots, that may be a mistaken assumption with this more
current postfix. I am thinking that there is more controls that I might be
missing. So please find below an error from a client at yahoo, examples or
the errors in postfix logs and my postfix -n output.

Thank you for any help or insights that you may have!

Eric





Client errors are like this,

Sorry, we were unable to deliver your message to the following address.
Message expired for domain techsoft3d.com http://techsoft3d.com/



Getting these sorts of errors from yahoo on my postfix 2.8.1 server,

Jun  3 17:32:02 loki postfix/smtpd[2579]: connect from
nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
Jun  3 17:32:02 loki postfix/smtpd[2579]: C012C640593:
client=nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
Jun  3 17:32:02 loki postfix/smtpd[2579]: lost connection after RCPT from
nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]
Jun  3 17:32:02 loki postfix/smtpd[2579]: disconnect from
nm16-vm0.bullet.mail.sp2.yahoo.com[98.139.91.210]


And 

May 30 00:39:35 loki postfix/smtpd[24178]: connect from
nm8-vm0.bullet.mail.ne1.yahoo.com[98.138.91.23]
May 30 00:39:35 loki postfix/smtpd[24178]: lost connection after CONNECT
from nm8-vm0.bullet.mail.ne1.yahoo.com[98.138.91.23]
May 30 00:39:35 loki postfix/smtpd[24178]: disconnect from
nm8-vm0.bullet.mail.ne1.yahoo.com[98.138.91.23]


Here is my postconf -n:

alias_maps = hash:/etc/aliases
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
inet_protocols = ipv4
local_recipient_maps =
local_transport = error:local mail delivery is disabled
message_size_limit = 2
mydestination = techsoft3d.com,ts3d.net,ts3d.lan
mydomain = techsoft3d.com
myhostname = mail.techsoft3d.com
mynetworks = 192.168.1.0/24 192.168.2.0/24 12.19.144.48/28
myorigin = techsoft3d.com
proxy_interfaces = 12.19.144.50
relay_domains = $mydomain, ts3d.lan, ts3d.net
relay_recipient_maps = hash:/etc/postfix/relay_recipients
relayhost = 
smtpd_client_restrictions = reject_rbl_client
jksahdkjshakjfkjgsajdh.sbl-xbl.dq.spamhaus.net
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
tcp_windowsize = 256
transport_maps = hash:/etc/postfix/transport






eric


eric smith
senior network administrator



http://www.techsoft3d.com
email: e...@techsoft3d.com
skype: eric_ae_smith
phone: 510-333-1729