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

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2
votes
1answer
20 views

Postfix SMTP authenticated can send as anyone

The server correctly accepts/rejects the logins though dovecot's authentication mechanism, but after that I can pretend to be anyone when sending emails. smtpd_sender_login_maps = ...
2
votes
2answers
15 views

postfix relay based on origin

I have 4 servers. prod1.example.com, prod2.example.com, dev1.example.com, and dev2.example.com. They all send their mails to smtp.example.com. This server does the relay. Now I want that dev1 and dev2 ...
6
votes
2answers
80 views

Can't receive mails from Gmail

A few days ago Gmail suddenly decided to stop sending mails to my mailserver. I am using Postfix and Dovecot with an paid SSL Certificate running on Debian 7 with everything updated. My mail.log ...
0
votes
0answers
18 views

postfix always_BCC mail system configuration error

I'm trying to setup always_bcc to an archive account in order to copy all inbound and outbound mail into a mailbox that can be sucked up by a third-party cloud archive solution. Outbound, works fine, ...
7
votes
1answer
42 views

How widely supported is forced TLS on inbound SMTP connections?

I run an MTA consisting of the standard Postfix, SpamAssassin, ClamAV, SPF/DKIM checks etc. This MTA is used for inbound email only, doesn't host any accounts and forwards any mail that passes said ...
4
votes
1answer
29 views

Postfix address verification server not working

I try to use the Postfix address verification server, but I can’t make it work. Here is the content of my main.cf file, generated by a postconf -n command. I mark the four line I modified myself. The ...
-1
votes
0answers
4 views

Setting up a highly available Mail service with Postfix and ISCSI [migrated]

in an academic project these days we've got to set up a highly available Mail service with ISCSI and Postfix... For now i have a highly available ISCSI SAN and also a highly available Postfix server, ...
0
votes
1answer
23 views

Postfix - Need to log email and then redirect to same user different domain

My goal is to add emails to a DB and then send them on to the user at a different domain. My mail server is hosted elsewhere using my domain, (me@example.com). TO get this working, I set up postfix ...
1
vote
1answer
19 views

Postfix restrict all incoming mail to certain domains, then allow all for specific user addresses

We use Postfix for company email address's given to employees... all are of the format username@example.com. Basically I want to restrict all incoming mail to these addresses to only allow emails ...
0
votes
1answer
21 views

Postfix: how to redirect a single email address depending on the sender

I'm trying to add a rule to Postfix. My goal is as follows: when anyone EXCEPT (server@example.com) sends an email to (info@example.com) forward it to (sales@example.com). If server@example.com is ...
0
votes
1answer
36 views

mailman refused relaying after update

After I updated my mailman installation the server is now refusing to send the messages... and I can not figure out why. (I receive the messages since my mail account is on the same server, but they ...
0
votes
1answer
49 views

Postfix forward incoming emails to mailin

I've setup the smtp server using postfix with dovecot on mail.example.com server running on port 25. And then I've also setup another smtp server using mailin (http://mailin.io) on mail.example.com ...
1
vote
0answers
30 views

postfix - hock - extracting information out of processed emails

The setup Linux, Debian Wheezy, serves as mail server for about 1000 users. Courier and Postfix installed in this box. Info about the server It is a postfix setup which drops the emails to the ...
0
votes
1answer
18 views

How to scan mails with amavis from other mailserver

I have two postfix mail servers mailserver1 is running amavis to scan spam and virus mails mailserver2 is running without amavis. My question is how is the smartest way to use mailserver1 ...
0
votes
1answer
34 views

What is X-DKIM header for?

There are some emails with an X-DKIM header (next to DKIM-Signature) like this: X-DKIM: Sendmail DKIM Filter v2.8.2 DOMAIN SOMEVALUE However I am unable to find decent documentation for it. What is ...
11
votes
4answers
867 views

Is there any way to see if the mail sent by my server was received by the recipient server?

I've sent an important email that the recipient claims it wasn't received by them. They say that they asked their IT team to see if the email was received in their server. According to them the email ...
1
vote
1answer
17 views

Postfixadmin does not work after update “Cannot redeclare hex2bin”

I had recently updated my Debian wheezy (7.7) and forgot to check all systems after that. So, I can't really say what the versions were before I upgraded or at which point it broke. When I tried to ...
2
votes
0answers
30 views

Prevent postfix appending search domain

I have postfix running on OpenBSD, and I'm having trouble with it appending a search domain when none is configured in either postfix or the local DNS server (dnsmasq). My domain has a wildcard CNAME ...
3
votes
1answer
46 views

increase file size for log files from scripts started from postfix

I am using Postfix to run a script whenever a message is sent to a specific address. The script is a Perl script and it writes a log to a file using Log4perl. The log file is being rotated on a ...
-1
votes
1answer
35 views

Configure email SMTP Server on Apache2 [closed]

For a while we decided to use another Server (VServer "B") for our Mailserver. I transfered all email accounts and mailbox from VServer "A" to VServer "B". VServer "B" runs well and the clients are ...
-4
votes
0answers
20 views

How to view response of Postfix? [closed]

So, I have postfix set up on my server and I'm sending it emails. Everything is working alright. Do you know how I can see/log all the responses that I'm sending when a mail comes in? Like, is it a ...
0
votes
1answer
16 views

Postfix 'Too many hops' bounce back

When trying to send test mail my server gives me a 'too many hops' bounce back Error 554 5.4.0 Error: too many hops (in reply to end of DATA command) main.cf # See ...
0
votes
1answer
26 views

Make postfix not send bounce emails when rejected by Cluebringer (policyd v2)

I have recipient throttling (quotas) enabled on cluebringer and it's working well. However, every time someone is being throttled, postfix sends back a bounce mail. I do not want it to send back a ...
-1
votes
1answer
23 views

Postfix Refused on 587

Postfix is refusing connection on port 587 when delivering mail. Here are my config files: main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: ...
1
vote
1answer
25 views

forward an exact copy of all mail to second archive mail server

I am setting up an mail server with postfix at the moment, and I am almost done with it. But I need to archive all incoming mails. My first setup was to set the sender_bcc_maps parameter and the ...
1
vote
1answer
32 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, ...
1
vote
0answers
14 views

postfix relayhost send as user@example.com [migrated]

I have a working setup of a postfix installation, but because I have a dynamic IP, gmail refuses any messages I send from my server. I searched arround and found that with relayhost I can send ...
0
votes
0answers
38 views

Possible to configure postfix for authenticated and non-autheticated sending?

I'd like to deploy a new (postfix) email service for my domain (example.com) to: allow sending email to ANY domain ONLY if the sender (our cloud applications instances) is authenticated (e.g. by ...
0
votes
1answer
62 views

How can I disable local mail delivery in Centos?

I want to disable local mail on my Centos VPS because the I have a web form (on a website which is hosted by the VPS) which is delivering mail to the local mailbox rather than looking at MX records to ...
0
votes
1answer
45 views

Website Contact Form stopped working when I moved mailserver [duplicate]

I have a Centos server with ZPanel Installed. This server is used for hosting a website. Previously, I hosted mail on this server using a "Roundcube" mailbox however, I moved to exchange therefore, I ...
1
vote
1answer
24 views

Why does NIS map error prevent postfix from resolving local alias?

Postfix quit sending me mail from an Ubuntu 10.04LTS server. I spent an hour to two checking /etc/aliases, running and re-running sudo newaliases and sudo postfix reload, web searches for my issue ...
0
votes
1answer
37 views

Postfix: sendmail (php-cgi) with different IP as authenticated SMTP Users

my Postfix-Mail Server is delivering two main types of mails Mail recieved from php-cgi (sendmail), localhost relay Mail recieved from authenticated SASL SMTP Users Is it possible to define a ...
2
votes
2answers
32 views

RHEL sends mail as myhost.localdomain but I don't want the localdomain suffix/FQDN

I have several machines that used to run Ubuntu 10.04. The OS were changed to RHEL7. After the change, programs like cron and mail send mail as myuser@myhost.localdomain whereas on Ubuntu it was ...
-1
votes
0answers
43 views

Postfix SMTP problems with roundcube

I am trying to set up a simple webmail server using an archlinux wiki guide on a virtual user mail system. I have got it set up so the user can log in and read the mail that is there. However, I ...
1
vote
1answer
15 views

dict_pcre.so missing on debian

I've installed postfix as I normally do, using apt-get install postfix, but for some reason it's not including dict_pcre.so in the install. Is there something I've overlooked, or rather how and where ...
-3
votes
1answer
78 views

My server is no longer able to send emails after upgrade [closed]

I am no longer able to send emails since I updated my server from Ubuntu 13.04 to 14.04. I have several websites installed in my server, and none of them is able to send emails any more. Before the ...
1
vote
1answer
62 views

postfix multiple IP SMTP banner

I've installed postfix 2.11.3 and we have multiple IP addresses on our server which we want to host two domains, isolated and running on their own IPs. domain1 unix - - n - - ...
1
vote
1answer
18 views

postfix/procmail - preventing duplicate email in procmailrc

I've postfix on my server, I'm using procmail and customized shell script to process incoming emails for one of user accounts on my local domain/machine. (work@domain.com) Everything was just working ...
-1
votes
0answers
13 views

Vpopmail to Postfix migration

I need to migrate an existing Qmail+Vpopmail+MySQL+Dovecot system to a new Postfix+MySQL+Dovecot one. Both are using the Maildir format, but Vpopmail uses /home/vpopmail/[domain]/[user]/Maildir ...
0
votes
1answer
50 views

Postfix MySQL Dovecot Roundcube configuration

I am in the process of setting up a mail server and I was hoping to get some help. It starts with Roundcube webmail, when I tried to login with an existing correct user name and password it gives me ...
1
vote
2answers
55 views

How do I configure Postfix to accept SMTP for local users with “@” (at sign) in logins?

I have an Ubuntu 14.04 server at mydomain.com with a bunch of users with @domain in login, like us.er@mydomain.com. Each of them has an "pseudo" account us.er-mydomain.com with the same uid, passwd ...
0
votes
1answer
43 views

Dovecot configuration

I was setting up a mail server on Amazon EC2 using postfix and dovcot and I seem to be stack on starting up dovecot service. Here is the message i got when I run Service dovecot status dovecot ...
0
votes
1answer
45 views

Postfix reply to emails addressed to external email while keeping the correct from address

I have a mail server all set up and running on ubuntu 14.04 with Postfix / Dovecot for the domain "postfixserver.com". A second domain "googleapps.com" is running on google apps. user@googleapps.com ...
0
votes
1answer
51 views

Prevent Email Going to Spam [duplicate]

I've set up my own server and I'm really struggling to stop any outgoing email go to spam. I've used allaboutspam and mail-tester.com to test it and they both come back with perfect results. No ...
1
vote
0answers
51 views

How to integrate spamassassin to work with squirrelmail?

I have recently configured, postfix/dovecot/squirrelmail and installed AMAVIS, CLAMAV, SPAMASSASSIN .Im trying to check spam system is working by sending a plain text email with the following string ...
-1
votes
0answers
22 views

Postfix on multiple ports

I have defined an alternative SMTP port with TLS support for sending letters from postfix. The default is (TCP 587). I have 5877 inet n - - - - smtpd in the ...
0
votes
0answers
22 views

How to get UIDNEXT in python procmail pipe script? [migrated]

I have this python script for inserting raw email to db. Do not ask me why I am inserting raw mail to database. import sys from DB import * import email full_msg = sys.stdin.readlines() j = ...
0
votes
2answers
55 views

ports 993 and 995 not open even though opened in iptables

Hi I have a problem with imaps and pops access of email clients to mail server (postfix/dovecot) telnet from the servers shell (ubuntu 12.04, postfix, dovecot, spamassassin, amavis) to ports 587, 25, ...
-1
votes
1answer
28 views

Rewrite sender when relaying to provider server [duplicate]

I am trying to relay email thru my provider that has a mail server for my domain (xxxx.com). My postfix is configured as follows: relayhost = [smtp.xxxx.com]:25 the server requires authorization, ...
1
vote
1answer
89 views

Alternative to postfix with SNI certificates + Dovecot compatibility

As we're aware postfix doesn't support SNI (Server Name Indication), which means that if you'd define a certificate, it will be used for all domain names that you have on that server, which could be ...