Postfix is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program.

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Mail exchange software

I need to allow users of my site to write emails to each other, without revealing their email addresses. Here’s an example: user1@gmail.com sends an email to user2-alias@mydomain.com, user2@gmail.com ...
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DBmail / Postfix | Mailing between my own mail adresses

I am trying to send an email from address1.com to address2.com. Both email addresses are hosted on my server. The mail cannot be send. Sending from:to MYSERVER -> EXTERNAL SERVER = WORKING EXTERNAL ...
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28 views

Postfix alias for root not working in SUSE

First try I've set up multiple servers running Postfix. To get a general grasp of the state of the machine I usually redirect e-mail for root to my normal adress. I recently installed SUSE and ...
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1answer
15 views

Postfix Dovecot unix Error : missing '=' after attribute

According to multiple documents like https://help.ubuntu.com/community/Postfix/DovecotLDAP One of the configuration lines is: dovecot unix - n n - - pipe ...
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12 views

postfix email distribution list with physical account

I have postfix-2.11 running with mysql. I have special requirement about creating group email, just like distribution list. support@example.com -> user1, user2, user3 I have used ...
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30 views

cron and at send mail to wrong user

I have cron and sometimes at on an ubuntu 14.04. jobs output should be mail to me, but failed. I make a .forward in my home dir. mail explicitly send to local unix user is forwarded to my corp mail ...
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38 views

How to search mail logs effectively with `RegEx`

I was looking for some advice and examples on searching mail log effectively Suppose situation is like this -------- Forwarded Message -------- Subject: Fwd: Re: Notice of Allowance Date: Fri, 13 ...
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49 views

Dbmail / Postfix Send mail to local adress

I have a FreeBSD Server with Postfix and DBmail. The mail system is working perfectly except for one thing: I cannnot send an email from domain1.com to domain2.com if they are both hosted on the same ...
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1answer
21 views

Postfix / Dovecot Mail appears in logs, but not in its respective folder

I'm currently trying to set up Postfix with Dovecot, but something does not seem to work the way it should be. For some reason, mails I sent to my mail account appear in the logs, but do not become ...
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19 views

Accept mails only for a certain address with Postfix

How do you configure a mail server to only accept mails on a certain address? For example, my mail server should only accept mail on example@myths.ops and not example@harpy.myths.ops. I've looked ...
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29 views

postfix take longtime to send mail

Hi today i was unable to send mail to gmail and some other adresses. when i check postfix i get this error: CA2ED74467 16345 Mon Mar 9 15:55:56 xxx@xxxx.com (host ...
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11 views

Postfixadmin keeps loading while adding mailbox

I have configured postfixadmin 2.92. While adding mailbox postfixadmin keeps on loading and does not return any information like mailbox is created. But in mysql the mailbox has been added. Later when ...
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19 views

FreeBSD Reinstall postfix with mysql support

I have installed postfix using the ports tree without making modifications to anything. In my main.cf file i can't specify any 'Mysql:/' arguments because postfix does not have mysql support. Now i ...
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1answer
217 views

setting up a relay port for postfix smtp on CentOS 7

A CentOS 7 server has postfix, dovecot, and mailx installed. I am able to make an IMAP connection to the server from my remote Thunderbird client running on my local devbox. But I am not able to ...
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1answer
23 views

postfix logs: SMTP sessions stopping after RCPT TO

I took a look at my postfix logs and I've noticed an odd occurrence lately: SMTP sessions that seem to end right after the RCPT TO, as such: postfix/smtpd[11333]: > unknown[XXX.XXX.238.86]: 220 ...
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35 views

Relay access denied when using SMTP to external recipients POSTFIX FREEBSD

i am trying to send an email with my freebsd server using postfix and dbmail to an external adress. I have noticed the following things: MYSERVER -> MYSERVER = OKAY EXTERNALSERVER -> MYSERVER = ...
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1answer
36 views

Multithreading in Mail server (Postfix)

I need to perform multithreading on postfix mail server. I read about POSIX multithreading but could it be linked to postfix smtp server and if yes then how? System Specification: ubuntu 14.04 LTS and ...
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29 views

DBmail / Postfix : Relay Acces Denied

I am currently setting up a FreeBSD mail server with DBmail and Postfix. When i try to send an email from Hotmail.com to my server is gives this error: Feb 28 10:53:31 keroth postfix/smtpd[1848]: ...
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1answer
70 views

Test if postfix is running

I'm searching for a reliable way to test if postfix is running from inside a bash script. My first attempt was simply trying pidof postfix, which doesn't work. Then I tried to get the postfix ...
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1answer
172 views

postfix smtp connection timed out, why?

A CentOS 7 web server has postfix, dovecot, and mailx installed. I have been able to make an IMAP connection to the server in order to read inbox mail using a remote Thunderbird client, but I am not ...
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1answer
35 views

On Linux, what is the “mail” user account for?

The title says it all; there's an account mail and a group by the same name on my system, what's its purpose ? It owns the /var/spool/mail directory (empty currently). I plan to use that directory, ...
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25 views

FreeBSD dbmail , postfix port 110 error (220)

I am currently setting up a FreeBSD mail server with DBMAIL and Postfix. I have forwarded port 25,110 and 587 to this server. When I try to log in using pop3 on port 110 my mail program does not find ...
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44 views

Sending mail via cron doesn't work

We have an rsync script for making a backup from server 1 to server 2. The server is Centos-type, Amazon Linux AMI. The script is executed daily via crontab. The backup is made, so cron runs and the ...
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30 views

thunderbird can't connect to my email box

I have installed mail server successfully on my vps according to https://www.digitalocean.com/community/tutorials/how-to-set-up-a-postfix-e-mail-server-with-dovecot. I create user joe with passwd ...
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2answers
45 views

Server compromised - How do I find out what is sending mail

A friend of mine has a few small businesses and hosts Wordpress-based sites for them on a dedicated host. The Wordpress installs were neglected for awhile and the host ended up getting compromised. ...
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37 views

fetchmail doesn't get mail from provider

somehow can't get fetchmail to work properly... it wont get email from provider but it connects to properly # Configuration created Tue Feb 10 10:18:32 2015 by fetchmailconf 1.52 $Revision: 4636 $ ...
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175 views

Permission problems. Can't retrieve inbox mails from dovecot

I got a VPS server at a webhoster which has CentOS 6.6 as operating system. Because I have multiple domains which are used by various people this server is going to serve multiple roles: nameserver ...
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1answer
149 views

How do I read Maildir RFC822 messages from the CentOS 7 terminal?

In a CentOS 7 server with dovecot, postfix, mailx installed, I have mail configured to be stored in Maildir format. How can I use the terminal to access and view the RFC822 messages stored in a ...
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2answers
95 views

Should I ignore or totally block non-SMTP command attempts?

I have a couple of messages appearing in my Postfix mail logs every day, like: postfix/smtpd[7363]: warning: non-SMTP command from unknown[xx.xx.xx.xx]: GET / HTTP/1.0 Should I ignore them or ...
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1answer
39 views

IMAP Dovecot cannot connect

I am trying to set up my own mail server (for 'fun'). I followed this tutorial to the bone. But I get this error message: imap-login: Disconnected (auth failed, 2 attempts in 9 secs): ...
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17 views

Tool for migration of service configuration

Is there a tool that handles generic migration of config? For example if I have httpd, postfix, MySQL and users and groups data, is there a tool that can extract the config data for each service so ...
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2answers
50 views

Migrate from Sendmail to Postfix

We have an HP-UX environment running HP-UX 11.31. The system was originally built to send email out through Sendmail. The server only sends email out, and the programmer has built a number of programs ...
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3answers
269 views

Run script on receipt of email

I run a Postfix/Dovecot mail server for personal use. There's only a handful of actual mailboxes, essentially just postmaster@domain.com and username@domain.com. I frequently use the virtual file to ...
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1answer
47 views

can i get imap access using just postfix and mailx?

I have postfix and mailx installed on a CentOS 7 server. I am able to send and receive email from the command line using the mailx command. I am also able to read email in each user's inbox using ...
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2answers
175 views

postfix multidomain myhostname configuration

I have two IP address running on Postfix and each IP has own domain. In short i want to isolate domain so outside folks think it is running on own IP and fully isolated even PTR also But in postfix ...
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58 views

Postfix multi IP/Domain SMTP Helo'ing

We have Postfix running with two domain and each domain has own IP so it's isolated. But Spamhuaus blocked my IP and saying you are sending "localhost.localdomain" HELO I am already using ...
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1answer
120 views

Relay access error when I try to send mail from outside to postfix

I run a debian 7 system and I run postfix as smtp server. I can send mail from postfix to outside (even though it gets to spam folders by google) but when I try to send a mail from, lets say my google ...
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3answers
263 views

unable to view postfix email from centos 7 command line, why not?

I have postfix installed on a development box and I used the parameters from this other posting to configure postfix to work on localhost only. But the other posting does not explain how to send ...
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93 views

hooking up dovecot/postfix to mysql on CentOS 7

On a CentOS 7 web server, a java web application with a mysql database needs to be able to process incoming email. This means that each email message received by a specific email address needs to be ...
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1answer
83 views

How can I programmatically access the contents of a Dovecot mailbox in CentOS 7?

I just set up postfix and dovecot on a CentOS 7 server using this tutorial. I am able to successfully create a mail record using echo "TEST" | mail -s "testmail" youruser@localhost && tail -f ...
3
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1answer
273 views

ACL/MAC Permissions for dovecot and postfix in CentOS 7

I am using this tutorial to set up Postfix and Dovecot on a CentOS 7 web server. But when I try to send a test email using sudo echo "TEST" | mail -s "testmail" newuser@localhost && sudo tail ...
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71 views

/private/var socket not created with postfix/dovecot sasl

I'm currently running into a problem I have with my email server. I try to setup Postfix and Dovecot with SASL authentication but I get the following error when I connect with telnet (port 25) to the ...
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1answer
104 views

Force sending emails on port 587

I have an email server that is running postfix and dovecot for emails. Receiving emails works just fine, however my ISP blocks port 25. I'm trying to use either TLS or SSL to avoid this. The problem ...
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49 views

Postfix - send email from catch-all adress

I have a domain with a catch-all address. Let's say every mail with @example.com as destination-domain will be routed to my primary address. That is working fine with postfix and virtual addresses. ...
2
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1answer
41 views

is there a way to stop users sending to unwanted email accounts?

I want to set a command that only allows users to send emails to accounts ending in @hotmail.com @gmail.com @talktalk.net for example. Is there a way to set it so users can only enter these ...
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96 views

ZIMBRA 8.5.1 : error: unsupported dictionary type: LMDB

We upgraded the Zimbra from version 8.0.5 to 8.5.1 as in these below steps. su zimbra echo smtp.DOMAIN.com UN:PW>/opt/zimbra/conf/relay_password postmap lmdb:/opt/zimbra/conf/relay_password ...
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1answer
136 views

Rewriting from header when forwarding email using Postfix

I'm sending email using Postfix on my Debian server, which is working fine. Now I want to receive email by forwarding all incoming email to my email address (which is not on this server). I got this ...
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1answer
162 views

No Sendmail but ISPConfig Postfix

This is what php uses to send php mail with the php mail() function: ; For Unix only. You may supply arguments as well (default: "sendmail -t -i"). ...
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1answer
59 views

postfix virtual domain on specific IP address

We are running postfix with single domain (example.com) currently and we have appropriate PTR record for that. Now we want to add one more domain but i want to isolate that domain totally, Even i ...
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1answer
77 views

Is it safe to remove “received” header?

Is it safe to remove "received" fields created by my mail server for all outgoing mail? For example like this (all "received" headers from my server are deleted by postfix "smtp_header"checks"): ...