list.postfix.users Google Group

Help -> Setup MX backup serve!

2013-04-29T00:12:26Z

Hi All,
I am tring setup one MX backup server! And I need help!
For sample, I have 2 MX:
10 mail.mydomain.net
20 mail.backup.mydomain.net
In my main server (10) I have this on main.cf
myhostname = mail.mydomain.net
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname

how to configure virtual smtp, server has horde, unable to send from external client

2013-04-15T11:09:02Z

Hi
I have set up a RedHat 6 server with Horde 5, it works correctly now (after much headscratching) for users using imp for their mail.
However, if using an external mail client (I have been testing with thunderbird 17.0.4) -
I can send and receive messages from horde / imp to users on external domains and also I can send mail from Thunderbird to imp users on the server but not beyond to the external domains as the server will not act as a relay

Conditional replace among e-mail header fields: possible?

2013-04-15T08:25:26Z

Greetings,

I need to modify the "From:" header line in incoming e-mail messages ONLY IF "Message-Id:" starts with a defined string.

The action pattern would be similar to the following:

/^From: (.*)@johndoe.com/ REPLACE From: $...@ext.johndoe.com

Can you suggest a way to accomplish this?

Find out reason for error 550 from smtp server

2013-04-06T19:02:08Z

Hello,

I tried multiple things but all failed. I still get the following error from the Strato smtp Server (to address modified).

Apr 6 19:34:11 www postfix/smtp[95066]: 65FE0F0060C: to=<x...@gmx.de>, relay=smtp.strato.de[81.169.14 5.133]:25, delay=0.4, delays=0.19/0.02/0.14/0.04, dsn=5.7.0, status=bounced (host smtp.strato.de[81.169.145.133] said: 530 5.7.0 Bitte konfigurieren Sie ihr E-Mailprogramm fuer Authentifizierung am SMTP Server, wie auf [link] beschrieben. - Please configure your mail client for using SMTP Server Authentication (in reply to MAIL FROM command))

sender address/domain rewrite problem

2013-04-03T15:57:21Z

Hi there,

I'm trying to rewrite sender address/domain from @sub.example-domain.com to @example-domain.com.

I tried:
1) masquerade_domains = example-domain.com
2) sender_canonical_maps=hash:/et c/postfix/sender_canonical
(sender_canonical: @sub.example-domain.com to @example-domain.com)

In both cases, with masquerade_domains and sender_canonical_maps, when I send a mail from u...@sub.example-domain.com, I recieve mail with:

postfix/stmtpd[pid]: warning: connect to private/anvil: Permission denied

2013-03-27T12:35:25Z

Hi,

I have a problem with postfix after updating it to 2.7.0. Some time after the start (1-2 hour) postfix smtpd process starts to throw "Permission denied" errors.

Mar 27 12:59:04 ir postfix/smtpd[10616]: connect from unknown[unknown]
Mar 27 12:59:04 ir postfix/smtpd[10616]: warning: connect to private/anvil: Permission denied

Postfix header_check

2013-03-25T10:52:16Z

I want to forward a copy of the users email which has the specific subject. I have tried the below settings, able to Redirect that particular subject mail. But i want to forward a copy of that mail to another group id. Instead of REDIRECT is there any option to put a Cc: to the group id.

in /etc/postfix/main.cf:

postfix multiple instances on same machine using concrete IP for sending

2013-03-18T11:29:15Z

VPS with mail servers - each have it's own public IP:

mail.mydomain.com
mail.mailing1.mydomain.com
mail.mailing2.mydomain.com
mail.mailing3.mydomain.com

Send/receive emails works fine but

Problem:

When I sent test email from mail.mydomain.com to my gmail account I saw the strange header there

help with rbls in maillog

2013-03-11T15:28:53Z

Hello I have 2 rbls on my main.cf

I have

reject_rbl_client xbl.spamhaus.org, reject_rbl_client bl.spamcop.net

smtpd_client_restrictions

and

smtpd_recipient_restrictions

for some reason my log does not show when they are being used.

I only see error 421

postfix/smtpd[23976]: NOQUEUE: reject: RCPT from unknown[177.x.x.x]: 421 4.7.1 Service not available, closing transmission channel; from=<YxYFDmf...@xx.xx> to=<pe...@xx.org> proto=ESMTP helo=<177.x.x.x>

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2013-03-08T03:40:48Z

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warning: network_biopair_interop: error writing 37 bytes to the network: Broken pipe

2013-03-07T13:51:20Z

Hello

I've been receiving lots of errors in mail.log

Mar 7 11:49:47 mail postfix/smtpd[92520]: warning: network_biopair_interop: error writing 37 bytes to the network: Broken pipe
Mar 7 11:50:13 mail postfix/smtpd[92555]: warning: network_biopair_interop: error writing 27 bytes to the network: Broken pipe

how to block annoying spammer

2013-03-04T15:20:52Z

I have postfix / amavis / dovecot / vmails via postgresdb stack for office website

Sending/receiving emails works fine but

The problem: (domainname changed)

all the emails in the domain are affected by spam with modified header

I put the example header from the message delivered to jo...@abc.com.pl which is an alias of real mailbox jo...@abc.pl

possible localhost dns spoof attack

2013-02-25T13:48:50Z

Earlier today I noticed a spammer using my Postfix server as a relay to send out spam. This was puzzling because i had all requisite anti relay host settings applied. Further, it was particularly alarming that Postfix seems to be receiving the spam messages from localhost as indicated:

connect from localhost.localdomain[127.0.0. 1]

sender ip + sender address

2013-02-25T06:20:39Z

Dear All,

Is there any way to check both sender ip + sender address in postfix without using SASL Auth?

I would like to allow only from known IP + sender address for mail relay, e.g.
use...@test01.com + 192.168.1.1 OK
use...@test02.com + 192.168.2.2 OK

My current config is
mynetworks = /etc/postfix/allowRelay

postfix don't show real sender ip

2013-02-23T05:48:52Z

Hi all,
I have postfix use multi instance.
one instance listen on one interface.

When there is a connection from sender to postfix, I found that postfix log show only the IP of interface that get connection. It's not the real IP of sender.

What's wrong?

virtual-regex problem

2013-02-13T06:26:09Z

Hello,

I am having an issue with setting up virtual-regex email redirection. It appears that my wild card redirection is overriding an entry with less specific criteria.

Here is what I have in my /etc/postfix/virtual-regex

/somename...@somedomain.com/ somen...@gmail.com
/.*@.*/ somelocaluser

smtp timeout ramdomly with postfix and sasl

2013-02-12T12:53:15Z

Hello,

For my proxy server, I use Postfix (submission) with SASL for ldap authentication.

Randomly, I can’t send messages: timeout from the client (thunderbird)

This is my configuration:

Red Hat enterprise linux 5.4 64bits

Postfix 2.9.1

Cyrus sasl 2.1.22

I think that the problem is SASL, but I’m not sure.

Reject messages sent from a given sender to a given recipient domain

2013-02-10T14:59:46Z

Hi,

I know it is possible to deny a given sender or a given recipient.
But how to create a rule that checks both?

I want to temporarily reject messages sent from apache/php (www-d...@mydomain.ltd) to a given domain (externaldomain.ltd)

Should I define some sender dependent transport mapping?

Unable to set postfix as smarthost with plain authentication on port 25 (no tls/ssl): error 550 5.1.0 xxxxx authentication failed

2013-02-06T12:55:39Z

Hi there,
I'm using Debian GNU Linux "squeeze",
postfix 2.7.1-1+squeeze1

I'm in need of using a smarthost to relay all of my mail.

I'm unable to use an italia provider (aruba) as smarthos for my server.
I obtain the (in)famous "550 5.1.0 XXXXX authentication failed"

relevant part of logs:

alias and mailing lists

2013-02-05T12:55:41Z

hello everyone,
i've setup postfix + mysql + virtual domains and evertything is working fine. Now i'm wondering how to create and administer some mailing list i need to contact my customers.
i googled alot o f time, but didn't find what i'm looking for, i think i can do it simply creating virtual aliases that point to a bunch of real addresses internal or external to my server :

Error user send email from outlook using postfix

2013-02-03T04:41:49Z

Hi guys thanks for time and help
i have a smpt/pop3 using postfix and dovecot

when user try to send email from outlook client in the server i get:
warning: hostname does not resolve to adress name o service not know

but my server can receive email from others domain without problems.

what i have to check on my postfix configuration?

split domain with postfix

2013-01-31T19:06:40Z

I am trying to achieve with postfix what is described in this zimbra documentation:

If delivering to a single secondary mail system, configure a catchall on the domain to deliver mail to a secondary mail transport if users for the same domain reside on the second system.
zmpov cd example.com
zmprov md example.com zimbraMailCatchAllAddress @example.com zimbraMailCatchAllForwardingAd dress @example.com zimbraMailTransport smtp:mail.example.com:25

maildir delivery failed

2013-01-30T19:45:33Z

Been using the same Postfix server for years now, but today, when I created a new user and sent a test letter to that user, I got the following error:

The mail system

<postfix@******.com> (expanded from <security@*****.com>): maildir delivery
failed: create maildir file

VERP configure on postfix

2013-01-25T09:03:40Z

We have a outgoing postfix mail server. No inbox is there for any user. How do I configure VERP in postfix-2.9.4 mail server. I have read [link] but I am not able to understand what is the meaning of that is what to write in it

Postfix Error: mail loops back to myself

2013-01-13T21:45:45Z

I have installed, configured and run the postfix mail server.

Here is my main.cf file:

myhostname = myhost.mydomain.com
mydomain = mydomain.com
myorigin = $mydomain
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, mail.$mydomain
mynetworks = 192.168.0.0/24, 127.0.0.0/8

postfix rejecting mail: 555 5.5.4 Unsupported option: AUTH=<>

2013-01-13T12:34:24Z

/var/log/old/mail.log-20121219 .gz:
Dec 18 20:12:33 gaugino postfix/smtpd[1954]: Anonymous TLS connection
established from ch1gmehub08.msn.com[207.46.200 .12]: TLSv1 with cipher
AES128-SHA (128/128 bits)
Dec 18 20:12:34 gaugino policyd-spf[1956]:
spfcheck: pyspf result: "['None', '', 'helo']"
Dec 18 20:12:34 gaugino policyd-spf[1956]: None; identity=helo;

Why won't local messages be sent using postfix?

2013-01-12T09:19:11Z

I am following this tutorial that shows how to install, configure and test postfix email: [link]

I did everything he tells me to do. But when I try to send a local mail from myUser to myUser using mutt, it doesn't work. Mutt thinks it's sent. But it doesn't show up.

Alias Falied

2013-01-10T02:47:00Z

Hello there!

I have a problem here that can not find the reason.
I have a group (alias) created and only one source address of the same domain can not send to this address

Jan 9 16:33:35 correio221 postfix / smtpd [13219]: 9AA8A166F58: client = unknown [177.X.XXX.XXX] sasl_method = LOGIN, sasl_username = luis.mario_at_xxxxx.xxx.xx

New instalation un a Debian GNU/Linux server. Some problems, please help!

2013-01-07T18:50:55Z

Hello:

For the last 13 years I was using qmail in my commercial server, but it has not been updated for many years and months ago I got a DOS attack over it. For a new server I decided to try postfix.

I need virtual users, virtual hosts, pop/imap (dovecot), and antivirus and antispam (with qm I use clamav and SA), all in a just installed stable Debian GNU/Linux server.

send mail from domain1.com to specific email address

2013-01-06T21:50:58Z

Hi.

I have a mail server set up to receive and relay mail from specific domains as specified in main.cf "mynetworks" directive...

Now I have a new server (newserver.foo.com) that is sending mail to that mail server (SMTP) ... and the mail server is refusing to relay that mail... which makes sense...

client (Outlook 2007) can't send mails

2013-01-03T20:00:07Z

Hi!

I got the following strange behaviour. I have one client who is using Outlook 2007. And he can't send mails. Sometimes it works, but most of the time it doesn't. Especially when the mails have attachments it doesn't work at all.

From the view of outlook it looks like outlook doesn't do anything. Not even an error is shown. I think outlook even thinks the mail has been sent, but it will stay in the outbox and it wasn't sent.

How to add List-Unsubscribe in postfix mail server

2013-01-01T07:26:16Z

Hi,
We have been using postfix-2.9.4 with dkim-milter and SPF in centos 6.3. I want to add List-Unsubscribe: <mailto:usern...@domain.com?su bject=unsubscribe> header for every outgoing mail from my mail server. Is there any script or process to add this List-Unsubscribe header in our postfix mail server. The mails can be send from any MUA.

Most users local, some users same domain, rerouted via transport

2012-12-20T12:16:44Z

I have a mailhost with most of the domain users delivered locally and some users (same domain) residing in other machines.
The relevant configuration:
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
local_recipient_maps = proxy:unix:passwd.byname, $alias_maps, ldap:/etc/postfix/ldap-users.c f

destination_concurrency_limit to relayhost only

2012-12-17T09:29:11Z

Hi,

Our postfix server serves several internal domains and relays outgoing traffic through our ISP SMTP relay server. This external SMTP server is limited to 3 destination domains at the same time.

I am wondering if it is possible to set a destination_concurrency_limit of 3 to the relayhost SMTP server *only* and use the default limit for others SMTP servers.

Postfix RSET when relaying mail

2012-12-13T17:19:06Z

I'm having a strange issue and I thought I'd post it here in case anyone else may be seeing the same thing. I'm running postfix 2.6.6 on Centos 6.0. I've set postfix up as a relay box inside the network and NAT'd the address so that incoming mail hits the linux system. This then relays to an M$ Exchange 2010.

Postfix - Multiple IP addresses binding

2012-11-29T22:45:55Z

Hello,

I am the administrator of a Postfix setup for more than 2 years with multiple domains, multiple IP addresses and SSL configured and up and running. Everything was configured by myself and I have no restrictions on the mail server machine so basically I can do whatever you suggest.

Today I received a new requirement and I'm not being able to configure it, even after reading lots of resources around the web. Email messages for each separate domain must be sent FROM their respective IP address.

Header checks filters don´t working with encoded headers on utf-8

2012-11-29T13:05:32Z

I´m trying use header checks to slow down a common spammers subjects.
Anyway, now spammers discovery a new technics to bypass the filters.

When the subject on header comes with text plain
decoded the header ckecks works good. On another
side if then comes encoded is unredable and don´t
reconize regexp then i use it.

forwarding to internal server

2012-11-26T21:07:18Z

We have two mail locations that we would like to route mail based on an ldap attribute.

The LDAP attribute that is being queried is the internal email address of the user:
us...@server1.example.com
us...@server2.example.com

Is it possible to rewrite the users email address to the internal address and use MX of the rewritten address to direct the mail? If so what postfix function should be used?

Install Postfix and DCC 1.3.143 on FreeBSD?

2012-11-08T20:04:31Z

Hi folks,
I have a clean FreeBSD 9 install and I'm planning on installing Postfix from the port collection.

When I install Postix, it gives me the option to install "DCC support" as well as other DCC options.

The "included" version of DCC is not current, so I'm wondering -

1.) Should I just install Postfix and choose no options relative to DCC?

I want to setup SMTP Postfix to send mail externally

2012-11-03T18:23:52Z

Hi Guys...
My system is Centos 6.1, new build.
I have setup Poatfix and can receive mail for users with no problem
I want to setup Webmail, probably SquirrelMail.
When viewing emails and want to reply, the server will not send it.
If I switch to Sendmail, I have no problem.

Any advice ???

null or MISSING-HOST-NAME in From field

2012-11-02T19:21:22Z

I have set up a postfix mail server behind a NAT. Am using a static 192.168 IP address, and have port 25 forwarded to that server. Also am using outgoing.verizon.net as a relay host, (And dovecot to provide IMAP service, but it's not running while I test this.) I am able to receive and send mail. The problem is, in sent mails, the sender has no host name. If I send a message from user1 to a Yahoo account, the mail is received, but the From field has "user1@.MISSING-HOST-NAME.". If I send a message to a local user (user2), the mail is received, but the From field has "user1@". I don't see what is wrong in the configuration.

mail from google groups

2012-10-29T15:24:42Z

Hi all;
i manage a postfix MTA for my company, and when we recive mail from a google group i always see this sendere in postfix logs:

from=<tf+bncCK-qtq6JFxCo1Nr_BB oES2fpCA@sender_domain.com> to=<u...@mydomain.com>

Can anyone explain me what the hell tf+bncCK-qtq6JFxCo1Nr_BBoES2fp CA is?

Users see tf+bncCK-qtq6JFxCo1Nr_BBoES2fp CA as mail sender in their client; is it normal?

message_size_limit ignored

2012-10-12T21:15:02Z

Hi list,

should the message_size_limit ([link]) directive be applied unconditionally or are there exceptions?

My Postfix server accepts huuuge mails despite having message_size_limit set:

message_size_limit = 26214400

From the log:

03:38:31 mail1 postfix/smtpd[9202]: connect from redacted

Exemption for wildcard "catchall"

2012-09-26T19:53:48Z

Hello,

we have a postifx/dovecot configuration as the mail server in our QA environment. since we used obuscated versions of live data in QA we have the postfix server in QA setup up as a catchall for all domains.

We have a new project that involves mobile messing through email, so the QA analysts actually need to receive the messages on the phone.

Details web base mail log analysis

2012-09-16T12:05:47Z

Dear All,

Anyone know which web-base mail log analysis can provide comprehensive mail report feature similar to mailwatch, such as mail trace report by sender / recipient , date and time or subject, because mailwatch required to integrate with mailscanner, we don't want to use mailscanner anymore, and postfix official site not recommend to use mailscanner for mail filter, we will try amavis instead of mailscanner.

Problem with virtual_alias_maps matching for virtual_mailbox_domains only

2012-09-13T14:10:10Z

Hi, I have let's say 3 virtual domains:
- virtual.org
- example.com
- testing.net

What I want is that all mails sent to i.e. webmas...@virtual.org, webmas...@example.com, webmas...@testing.net go to mys...@testing.net.

I want the alias to match only the virtual domains.
With this configuration the regular expression matches all domains, not only the 3 virtual ones. So let's say I send a mail to webmas...@humpadoo.com it is redirected to mys...@testing.net.

Install postfix on QEMU

2012-09-01T23:34:27Z

I installed postfix.
But It stop on error.

I use Ubuntu12.04 as host machine.
Target machine is arm cortex-A8.
I use emulation of arm by qemu-arm-static.

In postfix_2.9.3-2~12.04.2_armel. deb
newaliases -> ../sbin/sendmail
I think that is a error of getifaddrs using in sendmail.

Results of ifconfig is normal.

postfix smtp Intermittent error sending via Thunderbird

2012-08-29T02:26:01Z

I have no problem receiving email via mobile broadband. But there is intermittent error when sending email. Sometimes the mail can be send. Is it because imap have automatic retry. While SMTP does not?

The sending problem does not exist for ADSL. Is there any way to tune postfix to reduce the error.

Configure postfix to relay mail recieved from specific IP addressess

2012-08-29T01:08:32Z

I would like to configure my postfix server to relay any mail received from a specific IP address directly to a different mail server. Content is irrelevant - if the email was forwarded to us from this address, it gets sent on to a different server, even if there is a local mailbox which can accept the email.

Route incoming @server.example.com to joe@example.com

2012-08-28T14:21:22Z

I've been beating my head on this one. I've got group who has a windows test box and they want all email from that box to go to one email address.

What I'd like to do is something like:
/^From: ....@server1.example.com/ j...@example.com

So email from server1.example.com is sent to mail.example.com (linux postix box). There all email from server1 is routed to a single email address, j...@example.com.