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

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0
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1answer
21 views

Postfix log showing same error every 5 minutes

I have an error in my mail.log (/var/log). I'm using postfix. I am only using it to send email from my web app (Python/Django) for registration (I haven't configured for inbound, the MX isn't pointing ...
0
votes
2answers
20 views

SMTP don't work when try to send mail from mail clinet

Mail server works fine when send mail from server, but when I use some mail client it not work. I found this in logs: Jul 12 19:45:04 tvsite postfix/smtpd[3356]: warning: hostname adsl-bb29-l44 does ...
0
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0answers
23 views

postfixadmin Could not log into IMAP/POP server

I had installed and configured dovecot, postfix, and postfixadmin step by step from this tutorial on my server (CentOS6). But I don't know why, when I want to create Mailbox from postfixadmin then I ...
-2
votes
0answers
17 views

Postfix only works in localhost

I have a server running ubuntu 14.04, and i need to be able to send e-mails from my server, to do that i installed Postfix. I followed this tutorial. But here's the think, my server is able to receive ...
1
vote
1answer
34 views

Server sending spam - how to find out why?

I have a CentOS 6 on a dedicated server. I'm the only one with shell access to it. I host 2 Wordpress and few simple PHP sites there. My hosting company just emailed me that they blocked my port 25 as ...
-5
votes
0answers
24 views

How to download inbox using postfix / dovecot on an iPhone? [on hold]

I recently just setup postfix / dovecot mail servers. I am able to login to the mail server using my iPhone and send a message to a different email address, i.e. (a gmail address) but for whatever ...
0
votes
2answers
52 views

email sent from my server shows up as spam [duplicate]

I know this question has been asked and answered a couple of times, but I can't find any reference to my particular problem. I've set up Postfix and Dovecot on my Debian 7 VPS and I can send mail, but ...
0
votes
2answers
18 views

Remote IP and SMTP Proxy

Is it possible to proxy emails - with postfix for example - transparently so the backend mail server will get the last SMTP server IP address (rbl purpose) and not the Proxy IP address? If it is ...
0
votes
1answer
16 views

Error sending emails from a mail server relay type falling into the spam folder (using postfix)

Here I show one of the emails that come to Yahoo, which are falling directly into SPAM folder. The SPF goes smoothly, the DKIM passes without problem, even DMARK passes without problem, but just keep ...
1
vote
1answer
35 views

Why does mail -E let me send empty messages?

~ > which mail /bin/mail ~ > ls -la /bin/mail lrwxrwxrwx 1 root root 22 Feb 25 14:18 /bin/mail -> /etc/alternatives/mail According to man mail, -E If an outgoing message does not ...
0
votes
1answer
20 views

postfix unable to receive external emails

I have setup an email server with postfix and dovecot. Installation went fine but I am not able to receive emails from external users(gmail, yahoo etc) but I can send email to external users. When an ...
-2
votes
0answers
20 views

Unable to login to squirrelmail [on hold]

Have problem with squirrelmail, can't login... This is what I found in log file: Jul 9 13:57:45 tvsite authdaemond: ldap_simple_bind_s failed: Can't contact LDAP server Jul 9 13:57:46 tvsite ...
0
votes
0answers
25 views

Postfix Policyd both for SASL and non-SASL mail

I have configured Policyd v2 (cluebringer) to apply quota on msg count for SASL and non-SASL users. It is easy in policyd [1]. However I don't know how to configure postfix (2.7.1). Right now I have ...
0
votes
2answers
27 views

How to migrate a small handful of users from one mail server to another

Here's my situation: I've got a mail server, we'll call it mail1.site.com. And what I want to do is, build a new mail server, mail2.site.com, and migrate all the users over. The setup is ...
0
votes
2answers
37 views

View realtime list of connections to Postfix

I am running Postfix on a linux box with a couple hundred local users with mailboxes. Is there a way to monitor all incoming connections (SMTP) to the Postfix service? I.e. a live stream of "IP ...
0
votes
1answer
39 views

Reverse DNS does not match SMTP Banner

We are using postfix on centos as a mail server to send out newsletters. but in the mail log file I can see that many receivers rejected our newsletters. and with the help of mxtoolbox, I found a ...
0
votes
1answer
24 views

How to set up postfix / dovecot with SSL to send receive emails from iPhone

I just installed a fresh copy of dovecot on my VPS. I am also running postfix, and I first went through this guide I followed everything as explained. However when I try to send an email from my ...
0
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0answers
21 views

How to force postfix follow (dns) mx priority even for local domains on Linux Ubuntu Server with Plesk

Use Case Scenario I have a Linux (Ubuntu 12.04) with Plesk (11.5) hosting server where some clients use the server's mail service only as a failover. They set up an external mail server with higher ...
0
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0answers
27 views

drop smtp live connection

So the problem is that I think my server got DDoS attack with SMTP packet (my mail server). What I can see is that the attacker abuse the smtp_connection_cache. The attacker keep connections (smtp) ...
0
votes
1answer
28 views

Different log file per postfix instance

How can I set a custom log file for each postfix instance? Specifically, I need to identify entries generated for different instances of postfix, and would be better for the tooling if each instance ...
-1
votes
1answer
24 views

Prevent postfix sending spam from fake local address

To make it simple, 1. I have an email server Postfix (not open relay) 2. filtered with ASSP (filter incoming mail/connection) The problem: some bad guys (spammer) send tons of spam using my email ...
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0answers
28 views

postfix nested MAIL command

I'm trying send emails using postfix. I can send emails to other users (just now only in a local enviroment), but for some reason, when I execute the command: mail -s "subject" use@domain ...
0
votes
4answers
138 views
+50

Postfix setup on AWS EC2 using SMTP relay

On ec2 instance, the IP is dynamic, and if I want to use third party SMTP gateway such as sendgrid, what is the suggested values of the following fields? myorigin myhostname mydestination Assume ...
0
votes
1answer
28 views

Postfix with Pgsql support

I'm trying to find an alternative repo with postfix that has pgsql support on Cenots 6. I previously used CentAlt but since that seems to be dead now i'm trying to find an alternative. I would ...
2
votes
3answers
31 views

use two different configs in one postfix, is it possible?

I'm wondering if is it possible to specify another main.cf for the configuration of smptd service in another port paired with normal config in standard port. I know that is it possible to override ...
0
votes
1answer
47 views

Postfix seems too aggressive while sending newsletters

I'm having a problem sending newsletters to certain domains/servers, like yahoo or minor network providers. It's like I'm spamming their servers with connections and they tell me to stop after a short ...
-2
votes
1answer
30 views

Where are Plesk mail queues? Postfix queue? Spamassassin queue? Kaserpy queue?

I have problems with incoming email on my Plesk server, so I was looking for the email queues. Emails are stored in /var/qmail. However, there is no /var/qmail/queue. I think it’s using the Postfix ...
0
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0answers
26 views

Send mail with postfix using multiple ip address [duplicate]

I'm developing a mail marketing service and in this service I need to set an outgoing IP address in postfix before send an email but the problem is, I have multiple clients and I need to set an ...
1
vote
1answer
82 views

CentOS 6.5 Webmail Server: warning: SASL: Connect to private/auth failed: No such file or directory

I'm trying to run a webmail server on CentOS with Postfix, Docecot and Roundcube. Whenever I try to send mail or send a test email to my server it fails. I can login so looks like Dovecot is okay. ...
3
votes
2answers
65 views

Backup MX server used to queue mail

In short: I need to setup backup MX server, which will queue messages it receives for later delivery through original MX, AND it must only accept messages for mailboxes which will be listed in ...
2
votes
1answer
27 views

Is this backscatter?

I noticed a mail is hanging in the mailq, so my question is if that is backscatter. The mail in question: Jul 1 10:38:48 a1a postfix/qmgr[30971]: F2C95230470: ...
0
votes
1answer
13 views

Postfix - Email Header from name

On an Ubuntu 12.04 server with installed postfix: If I send an email from terminal with mail and look at the E-mail header. From where does postfix generate the from name at this line: Received: ...
1
vote
1answer
30 views

don't forwards spam mails with spamassassin

I have a mail server running postfix for my youth movement. I use the mailserver to create groups that everyone can mail to so the right persons receive this mail. It's a relay server. I noticed that ...
0
votes
1answer
22 views

Postfix: Two domains in mydestination - where are the mails delivered to?

I have two domains in the mydestination parameter of Postfix: mydestination = foo.com, bar.net The MX-Records for foo.com and bar.net are set to mail.foo.com. In my /etc/aliases I map admin to the ...
-1
votes
1answer
78 views

How to block incoming login attempts to postfix, pop3, imap?

We are running CentOS 6.5 with Plesk and have to send email but don't need to receive. I would like to block all incoming login attempts to postfix, pop3 and imap. I have found hints to iptables or ...
1
vote
1answer
56 views

Posftix mails not arriving to external recipients (closed port)

I have an Ubuntu Server (192.168.1.2) behind a router (192.168.1.1 with static public IP a.b.c.d and domain example.com). Apache works fine and is accessible from the outside under example.com. On ...
0
votes
2answers
40 views

Explaining postfix entries in syslog

My syslog is absolutely crammed with postfix messages like : Jun 28 10:27:07 myserver postfix/smtpd[28830]: connect from unknown[180.215.170.141] Jun 28 10:27:07 myserver postfix/smtpd[28830]: ...
0
votes
2answers
68 views

What should I set in postfix's myhostname / mydestination?

I am using Ubuntu, on a web server need to send out email (via sendgrid), this server never receive any external email, and I've the following hostname settings /etc/hostname = example /etc/hosts = ...
0
votes
1answer
37 views

Transaction failed 554

I created mail server by this tutorial http://www.unixmen.com/install-postfix-mail-server-with-dovecot-and-squirrelmail-on-centos-6-4/ I can send emails to myself it works fine, but when I want to ...
0
votes
1answer
49 views

Why is received mail stored in ~/Maildir and sent mail in ~/mail?

So I setup my mail server eons, and I'm doing maintenance on it right now and I'd figure I'd fix a few things with it that's bugged me forever. Mainly, I'm trying to move all the mail storage into a ...
0
votes
0answers
22 views

Postfix+DKIM using Amazon's second private IP address

I use Amazon EC2 with 2 private IPs. I have 2 postfix instances (using multi-instance builtin support) with opendkim. Each instance works when I send email (over telnet) using the primary private IP ...
1
vote
0answers
64 views

Postfix: SASL authentication failure: cannot connect to saslauthd server: Permission denied

I had a Postfix/Dovecot server up and running for about a week until I had to reboot it. When I did, things stopped working. I've been up searching for hours to no avail. IMAP successfully ...
0
votes
1answer
39 views

Postfix multiple MX records - binding addresses

I have a postfix mail server with a working opendkim and SPF setup. Everything works when I use only 1 IP/MX/hostname (e.g. mail.example.com). I try to enable another IP so the postfix could balance ...
0
votes
1answer
30 views

Postfix and MySQL configuration

I have the problem with configuration of Postfix on my server. I have been used this link like tutorial for creating and configuration Postfix. ...
-1
votes
0answers
25 views

postfix wildcard to script

I run a fully functional postfix server on Mac OS X Server. A single domain, hundreds of users, mailman set and running, everything is ok. I would like to use a wildcard to process some virtual ...
0
votes
1answer
18 views

Postfix: What does orig_to mean when using virtual_alias_domains?

I'm running a postfix server with the primary domain being domainA.com (configured in mydestination) There is a second domain, domainB.com configured under virtual_alias_domains I have user accounts ...
-1
votes
0answers
26 views

Apache, vsftpd, postfix/dovecot ssl certificate issue

i have these services hosted on the same server for my website. each one is either www.domain.com, ftp.domain.com, or mail.domain.com. i have a multi-domain certificate install successfully. however, ...
0
votes
0answers
33 views

Duplicate emails being sent

I'm on a Mediatemple server with Plesk 11.0.9, CentOS 6.4. The same email was sent to user@wesleyan.edu 31 times and I'm trying to determine why. This has been a reoccurring problem with various ...
1
vote
1answer
67 views

Postfix: mails sent through sendmail binary are blocked because of wrong HELO

My server is using Centos 6.5 I updated from Plesk 11.5 to 12 last week and postfix to 2.8.17. Since then, all mails sent using the sendmail binary (notifications, mail forwards...) are being rejected ...
-1
votes
1answer
57 views

Postfix + Mailq: Mailbox Full no bounce

I have a mail server and alot of clients. Some of my clients have many email accounts and dont use some of them. So, I have alot of mailboxes full, which receives dozens of emails every day. So, my ...