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Questions tagged [milter]

Milter is set of API that provides an interface for third-party software to validate and modify messages as they pass through the mail transport system.

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Package sid-milte, sender-id install

Did someone ever install the sender-id in postfix? I can not install it, I do not know how to install it. Thank you very much, if someone can help me..
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Postfix Package Openarc

I have a server running Ubuntu 16. I'm trying to get postfix configured to use OpenArc. I've installed the OpenArc package, but it's not automatically starting on reboot. If I run openarc -c /etc/...
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Milter application on Postfix server

I am trying to deal with this problem: As email is queuing up in Postfix, Postfix should be invoking a milter to check the sender against a flat file source that will be available on the same server ...
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87 views

Postfix Conditional redirects

I have a tricky one here! I have a dinamic list of some... 3000 email addresses that I need to filter on Postfix. I need that if any of these addresses sends an email to (support@mydomain.com or ...
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25 views

Postfix rejecting incoming messages from one sender

a user is complaining that all incoming messages from a specific external user are being rejected and never making it to her inbox. maillog contains the following entries. It looks like milter is ...
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1answer
1k views

opendkim no signing table match for no signature data

I got an error when I try to install and config opendkim : no signing table match for 'contact@domain.com' no signature data opendkim.conf : # This is a basic configuration that can easily be ...
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1answer
65 views

Can't get Sendmail to connect to MIMEDefang

I would like to set a milter using MIMEDefang on Ubuntu 16.04. I have an existing server using Sendmail 8.15.2-3. I installed MIMEDefang 2.78-1ubuntu1.1 (default package from apt). I configured my ...
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How is an SMTP-Client supposed to behave if he receives an Error from the Server?

Consider the following SMTP-Session: 220 mx.example.com ESMTP Postfix EHLO example.com 250-mx.example.com 250-PIPELINING 250-SIZE 10240000 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME ...
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1answer
51 views

Can postfix queue message till milter comes back?

I am using postfix and a before queue milter (written in java, running as a seperate process). When milter crashes or not available for a brief period, can postfix be configured to queue till milter ...
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1answer
1k views

Opendkim fails to start on CentOS 7 (connect to Milter service inet:localhost:8891: Connection refused)

I've got issues with OpenDKIM not starting on my CentOS 7 (with Postfix) server since an update for OpenDKIM crashed a while ago. I've tried the following: service opendkim start Then it says: Job ...
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1answer
122 views

Postfix rejecting mail when milter is down - is it possible to let the emails throu anyway?

I am running a emailserver with two milters: OpenDMARC and OpenARC - both has worked very well and has been stable. I have defined both milters like this: smtpd_milters = inet:localhost:8893,inet:...
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67 views

Postfix milter - Is there a transport security?

Currently I am running a before-queue-milter script (written in java) and I see the postfix is communicating to milter in plain text via a socket connection. Is there a way to protect this by some ...
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1answer
299 views

Postfix not triggering OpenDKIM milter

I've been trying for a long time to start signing mail sent via postfix with opendkim. Looking at the logs, it looks like zero attempt is made to communicate with postfix: Aug 4 20:59:59 localhost ...
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1answer
163 views

Capture queue ID and 250 OK via milter

We have a web app that sends email. Right now, if we send an email, and it is bounced (for whatever reason), no one knows since it comes from a no-reply address, which is never checked for bounces. ...
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266 views

SMTP/ESMTP binding authenticated user with “Mail From” or “From” fileds

I am using Sendmail as MTA supporting ESMTP & AUTH LOGIN. I would like to know any milter program the rewrites "Mail From:" to "authenticated-user@mydomain.--.--". Otherwise, an authenticated ...
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1answer
255 views

postfix connection to python-libmilter test-milter

From the python-libmilter I am trying to run the test milter. The milter is listening (I can connect via telnet to localhost 5000) I enabled the milter in the postfix config: milter_protocol = 6 ...
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2answers
3k views

How to get spamassassin working with postfix as a milter

I'm trying to get spamassassin working on Ubuntu 16.04 with postfix. When receiving mail, I get messages similar to the following in my logs: Jun 11 14:29:47 myhost postfix/smtpd[2387]: connect ...
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204 views

How can I customize before-queue milter replies in Postfix?

Currently I use postfix with spamass-milter and clamav-milter as before-queue milters, which both work very well. I reject hundreds of messages a day on my small personal mail server on the basis of a ...
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1answer
1k views

correct order for Postfix milters

I use the following milters with Postfix: ClamAV, OpenDKIM, OpenDMARC, Rspamd This is also the order they are being called via smtpd_milters. What would be the best order for them regarding ...
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1answer
643 views

openDKIM breaks email forwarding

After moving our server over to Postfix, I have decided to implement DKIM using OpenDKIM. I have been successfully able to install and run this, but while it is enabled as a milter, all mail ...
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1answer
1k views

Configuration of ClamAV on Fedora Core 21 with Postfix

I was unable to find any help anywhere on installing Clamav on a modern Fedora system. All the advice out there is old and doesn't apply - so far as I found anyway. And, it's not enough straight-...
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1answer
7k views

opendkim public key not available [closed]

I'm having problems with my mail server sending or reciving mails from/to hotmail can anyone explain for newbies what all this errors on postfix log/gmail header/website dkim validator are telling me ...
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1answer
413 views

Postfix does not trigger my before-queue milter script

I can't get the milter triggered when a new email is accepted by Postfix before-queue. Obviously, I don't do something properly but I can't figure out what. I have the following setup: Ubuntu Server, ...
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1answer
4k views

Milter service needs transport:endpoint instead of “/var/run/opendkim/opendkim.sock”

I have set postfix with milter based on this tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-dkim-with-postfix-on-debian-wheezy But then posptfix reported that ...
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1answer
541 views

Need linux milter solution to log email body into database

We exchange emails with various clients and vendors. I am trying to implement a solution where all the email communications between our rep and the client or vendor is saved in our database so in our ...
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1answer
1k views

How to setup Postfix with Opendkim to automatically sign PHP emails?

I've found that: submitted emails are signed properly (ie those sent with MUA's like Outlook and Thunderbird) command-line sent emails are signed properly emails sent with PHP, in particular case ...
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1answer
1k views

What can cause an intermittent broken pipe error with a SendMail milter?

CentOS 5 / SendMail 8.14.x I'm noticing intermittent errors with a milter on my SendMail server. Here's an excerpt from the maillog (I've edited hostname, QID, milter name, and recipient address to ...
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2answers
2k views

Postfix + Python MIlter

I want to write own miter, but I have problem. I have installed postfix, libmilter and python module Milter. I try to run sample.py milter which I found in pymilter-0.9.7.tar.gz (from http://bmsi.com/...
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2answers
8k views

What's removing stuff from /var/run at reboots from a fedora machine?

I am running a FC18 machine on which I am testing a piece of software (smf-sav, a milter) keeping part of its working files under /var/run/smf-sav/. That directory keeps disappearing after reboots. ...
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4answers
4k views

Clamav. WARNING: No clamd server appears to be available

I have clamav.log full of these messages, what might be the problem and how to fix this? I have Debian clamav-0.97.6+dfsg-1~squeeze1 spamassassin-3.3.1-1 dovecot-pop3d-1.2.15-7 postfix-2.7.1-1+...
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1answer
5k views

Configuring Postfix to use milter (archiveSMTP)

How does one config Postfix to use the milter "archiveSMTP" ? The milter config instructions (http://www.dancingfortune.com/projects/archivesmtp/download.php) mention only one socket for ...
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1answer
70 views

How can I collect the information sendmail sends to a milter and receives from that milter?

SendMail | CentOS For debugging/troubleshooting purposes, I'd like to examine the raw information that sendmail is sending to a local milter (and also the data being returned by a milter). Is that ...
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1answer
330 views

Do I need libmilter somewhere to make postfix use dkim-filter?

I've been doing everything the instructions say http://www.postfix.org/MILTER_README.html and I was able to build, configure and run dkim-filter but postfix doesn't seem to call it. I've got this in ...
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1answer
320 views

milter-regex / Ubuntu or Debian

I have been using milter-regex (http://www.benzedrine.cx/milter-regex.html) on Redhat for some time and am moving to Ubuntu. When compiling the source from their website, I get errors, even though I ...