Free and open source mail transfer agent (MTA) that routes and delivers email

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Postfix sending and receiving in strange way.

I have an email server, running on CentOS 6.5, 32bit system, with Postfix and Dovecot running along all their dependencies. Let's assume my domain is www.anw.com I have created A record in this ...
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7 views

Postfix relay_domains configuration for outgoing mail

im pretty new to Postfix and email administration in general. I have installed postfix on my debian 7 server following this tutorial Now, I can receive emails and if I try to send them using ...
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1answer
14 views

Postfix - E-mails missing, no message in the log

I'm setting up a postfix + dovecot mail server for myself on a VPS. I plan to host a couple of domains with it and be able to manage the users via MySQL. It currently works as I would like to but it ...
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9 views

force upstream smtp outbound through proxy

Upon inspection of emails sent outbound to external domains, the backend is revealed as being the true sender, rather than the proxy itself. When sending within the domain, from local user to another, ...
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1answer
12 views

How do I get postfix to send and receive emails after server OS update?

I apologize in advance if this is a duplicate. As I've mentioned in other questions, I'm not a server guy by any means. Background information: I'm currently using an Ubuntu server which was updated ...
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24 views

mail issues. cent os6, postfix and php mail. many domains, one with google apps

I am running a private server with centos6. I am using postfix. My "main" domain is using google apps to deliver its messages. I have several other websites hosted on this server too. The problem is ...
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8 views

Postfix + spamass-milter configuration: Do i need the -m option?

I have setup succcesfully Postfix 2.96 on Debian with opendkim and spamassasin-milter. Works fine but i have a question. Before I setup Postfix I have read many tutorials and there is one advice i do ...
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8 views

postfix: Creates bounce mails on mails which have auto-submitted set

Our Postfix creates "Undelivered Mail Returned to Sender", although the original has these headers set: Auto-Submitted: auto-replied Precedence: bulk Why does postfix create a non delivery report ...
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1answer
17 views

How I can set the errors in spanish language on postfix server email?

I have a postfix servers in my network and very much users not read the english lenguage, and I want set the errors in spanish language. My version of postfix email servers is: mail_version = 2.9.6 ...
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1answer
20 views

Create IMAP mailbox in linux server

I am using Postfix 2.10.2/Dovecot 2.2.5 on RHEL 5.9. I used to create normal virtual mailboxes. How can i create IMAP mailbox and use it and how to differentiate it from POP3 mailboxes ? I hope i am ...
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1answer
24 views

How do I simply forward email to an external address using Postfix aliases?

I don't want to deal with postfix virtual. I want to use aliases (/etc/aliases) Is there a way to do this?
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13 views

POSTFIX: how to determine how many connections are currently active

I'm running postfix on a mail server which is used by a couple hundered users. One user is getting "Connection Interrupted" errors in Outlook when attempting to send. I have not had reports of this ...
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10 views

Is there finer rate control for Postfix, e.g. 2/second?

I have managed to tune down postfix sending to one every second or one every five seconds. There's also an option to send only two or three concurrently. Is there any way to send two every second or ...
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23 views

Postfix/Amavis email vanish without a trace after cleanup/scan

Have this weird problem after amavis was triggered, mail vanished after cleanup. Apr 11 15:45:28 smtp postfix/smtpd[19861]: DD66613C04A: client=SENDER.com[66.66.66.666] Apr 11 15:45:28 smtp ...
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1answer
28 views

Multiple mail servers for a single domain [closed]

Running a "DNS scan" to make sure my DNS zones are setup "correctly" led to the suggestion by the tool to run more than one mail server for redundancy. It got me thinking about how one would implement ...
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1answer
20 views

postfix multiple recipients for the one address

I'm running postfix on centos and in my /etc/postfix/address I have email@domain.com username which works and now I want two people to be on that list now. I've tried email@domain.com username, ...
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2answers
29 views

postfix permit_sasl_authenticated in smtpd_client_restrictions for submission on 587

First let me explain my setup. I'm using postfix 2.9.6 on Debian Wheezy. I do not allow AUTH on port 25, and force MUAs to use a submission service on port 587 instead. Debian comes with the following ...
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3answers
34 views

Maintain email timestamp when transferring between email servers using an email client

I am running two different email servers using Postfix and Dovecot. Some of my users have accounts on both servers and sometimes transfer emails from one to the other through their email client. When ...
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2answers
30 views

Efficient way to get Postfix talk to SpamAssassin

Traditional methods of doing this on SA wiki talk about shell scripts as content filters. Well that's an additional fork syscall on every email and the volume that will flow through the machine is ...
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1answer
12 views

Adding Reply-To header using Postfix if it does not exist in the mail headers

I would like to add a Postfix re-write rule to insert a Reply-To: header if there is not one already defined. This server is a web server with PHP and Perl scripts, we do not want the mail sent from ...
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1answer
39 views

550-Verification failed when forwarding email to some servers

I have a Postfix installed and working with SPF check and SRS-rewriting. When it forwards email for an external address, sometimes its smtp denies relaying the mail with the message: Relay access ...
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1answer
14 views

Using DKIM in my server for multiple domains (websites)

As I couldn't find this exact tutorial in Stack, I share my findings with al of you. I always get things solved thanks to this comunity. Thanks! Original question: I've read the tutorial posted by ...
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0answers
62 views

Permission denied in Postfix's smtp authentication

I am trying to install a SMTP server on my personal machine (ubuntu server). I've been reading up on a lot of documentation and decided to try my hand at Postfix using sasldb2 for authentication. The ...
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16 views

How do the basic concepts of an OpenRC script using start-stop-daemon translate to systemd and its unit files? [closed]

An example OpenRC definition (from Gentoo) for a very simple service (pfix-srsd) is shown below. It uses start-stop-daemon to control the lifecycle of the daemon. Rather than executable scripts, ...
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5 views

How to add identity in dkimproxy?

DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=simpel-mailclient.com; h= from:to:subject:message-id:date; s=k1; bh=5eALQvUpOrW373J9iUFeZW p3Nag=; ...
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1answer
32 views

Does postfix try all MX records by default?

One technique for preventing spammers hosing your SMTP server is to set your lowest MX record to something fake. I'm having an issue with Postfix not being able to connect to the Meaningful Use ...
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1answer
34 views

How can I disable sending mail through postfix smtp with out auth

I just setup a mail server with postfix 2.6.6 and dovecot. I have the auth related config in main.cf like below: smtpd_tls_cert_file=/etc/httpd/ssl/mail.crt ...
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1answer
52 views

I can´t send emails server with Postfix in Debian [closed]

im trying to sent mail through php, in a Debian server with postfix, when i run the following script in the server, the code tells me that the email was sent successfully, This is my code: <?php ...
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3answers
45 views

Configure postfix to block PHP-sent mail() to certain recipients

I'm trying to prevent my CentOS 6.5 server from sending out emails to a certain list of recipients. (dont_contact_me@hotmail.com, dont_contact_me@gmail.com and so on). I've configured postfix like ...
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1answer
38 views

“Warning: hostname localhost does not resolve to address ::1: No address associated with hostname” inside an openVZ/Debian container

I'm getting the mesage regulary inside mail.log from postfix. In special, but not only, at mails send received mailman. warning: hostname localhost does not resolve to address ::1: No address ...
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20 views

how to change postfix mail recipient(To:) when sending to multiple external accounts

I have configured postfix mail server for outgoing mails. This server is used to multiply emails via virtual_alias_maps. x@domain is email account which multiplys emails for aliases, y1@domain2.com, ...
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71 views

Postfix: Bounce checking. Emails are piped to php but prevents emails from being sent and received properly [closed]

As I was working, I made a guide of what I was doing, for future use. I have been trying to get this to work for some time and I have gotten the emails to pass through the script. The problem all ...
1
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1answer
24 views

Postfix, Dovecot - connection from outside, authentication

I want to run postfix + dovecot on my server. I'm doing it for first time. Postfix and Dovecot works on local - I can connect through telnet, and send/receive e-mails using commands. When I try to ...
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1answer
49 views

Postfix setup to send to unknown users

Been try to find a similar setup like this but cannot find it or simply don't know exactly what to search for. Scenario: we just took over abc.com email operations, but there is still another server ...
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18 views

Postfix trigger script breaking messages

I am trying to intercept messages coming in, run a script on them, and pass them on to MailScanner. For now the script simply reads the message into a file, but when I place that file into ...
1
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1answer
48 views

Spf passes or fails depending on receiver address

I have postfix with dovecot set up on Ubuntu 13.10. I send emails via a node application (using email-templates). If I send an email from noreply@mydomain.com to myacccount@gmail.com (email 1), the ...
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1answer
21 views

Postfix on two servers. Can I route all mail though just one of them?

I have at least two web servers which utilise Postfix to send mail from web applications. One is what I call the 'master' which will remain static and the other is what I call the 'slave', which is ...
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0answers
10 views

Adjust Authentication-Results header and verify DKIM reports are being send

i'm running OpenDKIM 2.9.1 through Postfix 2.11, using the following configuration. https://gist.github.com/sibok/97a8e33d5f7309b4fa1c As you can see i enabled DKIM reporting but i can't see any ...
1
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1answer
22 views

Postfix timeout for unsent emails

I am using Postfix for send about 20 000 – 30 000 e-mail per day. For messages not ended into a spam, the script is running with 1 second break every email send. As a result, e-mail are sending about ...
0
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1answer
32 views

Mail Server with different IP than Web Server [closed]

I recently had a problem. Somebody hacked a Wordpress Site of one of my customers and sent about 70.000 Spam Emails. So my Server IP got blacklisted on some Providers. I'm looking now for a solution ...
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0answers
21 views

How can I find out what mail sending service an Ubuntu server is using?

I have access to a staging server for a Drupal site, and it regularly sends emails to test email addresses which don't actually exist. As a result, I get pummeled with "Mail Delivery System" emails ...
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0answers
14 views

Postfix server's mail blocked by spam filters [duplicate]

I've set up postfix on a server with two virtual mailboxes at two different domains. (workflowport.com and softech.tv) My email always ends up in the gmail spam folder. I've tried so many things and I ...
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0answers
22 views

Amavis sending Paypal payment emails to postmaster. Are they classified as spam/virus?

Some days ago i was reading some docs about amavis and decided to fine tune its configuration. As i'm new to amavis i probably setted some statements in the wrong way so last days i've been recieving ...
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1answer
31 views

Is open relay to local users the right way to work on port 25?

today i was checking my server Postfix restrictions when i realized anyone who meets a very basic requirements like not being in a black list, also anyone who communicates to the server properly, etc. ...
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1answer
22 views

Postfix not mapping UNIX users with @ character

What I want to achieve: On my production server, I'm planning to have multiple users and multiple domains and my best option is to create full email-address-format unix user - when John Doe requests ...
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0answers
34 views

Login to SquirrelMail as a virtual user

I am on CentOS 6 with Postfix, Dovecot, and PostfixAdmin. I have configured an external domain with the user me@domain.com as a virtual user. It's receiving mail without a problem at ...
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0answers
41 views

Postfix: Reject forged sender/from address

currently, i find myself in the situation where once Postfix 2.11 has been configured to properly reject outbound forged emails addresses when sender login mismatches and also when sender address does ...
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1answer
17 views

Alert Postfix sender when outbound email is not delivered due to amavisd-new checks

I'm running Postfix 2.11 together with amavisd-new which works fine with spamassassin and clamav to prevent inbound/outbound spam and virus traffic. Right now i'm looking for a way to alert users ...
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2answers
28 views

Does the spam keyword appear in mail log means that the email is marked as spam?

When looking at my mail log I have noticed the following: mail/mail.log.3:297:Mar 30 18:31:21 www postfix/smtp[21129]: 7A6C51014035D: to=<XXXXXXX@aserve.com.tw>, ...
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1answer
16 views

Postfix MySQL percentage error in query

I have a somewhat complex SQL query that I'm using to get alias forwarding e-mail in Postfix. The problem is that Postfix uses %s as it's insert of alias mark in the SQL query. I think this causes the ...