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Questions tagged [postfix]

Open source email server for Unix

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Strange postfix logs in journal

Three days ago the following log messages started appearing in the journal on an hourly basis approximately. postfix/qmgr 7E15D300513: from=<root@devsys.localdomain>, size=942, nrcpt=1 (queue ...
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Configure host base Postfix and send emails using a container

I have installed and configured the nano /etc/postfix/main.cf file for postfix in the host server and when I try to send it from the host server echo "Test Postfix Gmail SMTP Relay" | mail -...
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How to install postfix>=3.5.0 on Ubuntu 20.04?

I've searched high and low and it seems everyone just installs the default postfix package (version 3.4.x) There is a feature only available since Postfix v3.5 that I want to use. So how do I install ...
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Roundcube config script not found by Apache

I have installed roundcube and roundcube-psql on Ubuntu 20.04 from the packages. At the top of /etc/apache2/conf-available/roundcube.conf there is a single alias which I have uncommented. # Uncomment ...
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getting error installing postfix

I'm learning how to set up an email server, but some steps always fail. Like when trying to test the connection to gmail with port 25: telnet gmail-smtp-in.l.google.com 25 This is the result that I ...
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Postfix mail server - Gmail integration

I've setup a postfix mail server. I had an issue with some emails getting rejected but managed to fix it. I have been looking at solutions and had found one option to use Gmail as the SMTP relayhost. ...
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Postfix outgoing email - Bad DNS PTR

I have setup Postfix on Ubuntu 20.04 server but when sending an email out to one of the email address I get this error message below - A2DC19FAFF: host mx00.1and1.co.uk[21.22.50.41] refused to talk to ...
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Postfix: forward incoming emails to Gmail

My Postfix configuration for forwarding emails suddenly failed to work. It worked in the past as far as I remember. For example, I want to send emails from my yahoo email to my site (e.g. mysite.com) ...
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Postfix Hostname Change mailbox issues

Please excuse my ignorance. I changed the my server name and the hostname my domain was example.com and now it is example.ie When I send an email to one of my email addresses something@example.ie I ...
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Postfix causing a fatal error in file reconfiguring not working either

I am at a loss with this issue, I installed a new server setup from Vultr, and installed 18.04 Ubuntu in it, I just realised I cannot send any emails using the PHP mail function. The error that it ...
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Postfix not receiving email from gmail but it does recieve from hotmail

I got Zentyal SOGo installed. I can send emails from SOGo and both the gmail and hotmail accounts receive the emails. I reply the email from hotmail and SOGo receives the email. I reply the email from ...
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Postfix log level after Upgrading 16.04 -> 18.04 -> 20.04

I've upgraded my 16.04 LTS version to 18.04 LTS to 20.04 LTS. Everything works fine, even postfix log: Before upgrading I saw connect from, connect established, IP-adresses, TLS information, and so ...
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whenever I try install a new software i get a newaliases: fatal: myorigin parameter setting must not contain multiple values:

Running newaliases: newaliases: fatal: myorigin parameter setting must not contain multiple values: nduduzo-Inspiron-5559 nduduzontshangase@gmail.com dpkg: error processing package postfix (--...
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root mail - postfix, etc

for reasons that I cannot seem to divine, my postfix keeps trying to deliver messages to root to root@[MyISP].com, which of course is getting rejected as invalid username by the SMTP gateway at [MyISP]...
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Why xtec.cat ( from my educational institution, gmail account) works but msn.com doesnt

i have installed postfix and mailutils in ubuntu 20.04 When i execute: $mail -s "Title of email - Subject” mymail@msn.com it doesnt send anything...at least if i read my email i cant see ...
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Setting up Mail Server for multiple domains mapped to different ip addresses

We have taken dedicated hosting and using it for hosting multiple domains. The different domains are mapped to different ip addresses. for example example1.com mapped to 1.0.0.1 and example2.com ...
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Need to debug postfix service for slow bootup

I had slow bootup recently and found using systemd-analyze that postfix-service is taking almost 25 s to start, critical-chain told me it was specifically postfix@-service. PS: I also do not know what ...
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Is it possible to change 'From: root@example.com (Cron Daemon)' to conform to RFC 5322 angle-addr or name-addr format?

When my server sends messages generated by cron jobs, the all have the following From: header: From: root@relayclient.example.com (Cron Daemon) Based on answers in this Server Fault question I am ...
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smtp users group for saslauthd?

I'm trying to get sending mail in postfix working with sasl authentication In this article I found the author says to create a group for sasl authentication and then add users one by one to the group ...
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New server, aliases file doesn't work, virtual does

So, my question is: Why doesn't postfix simply use /etc/aliases to redirect incoming mail to external email addresses like I'm used to when I used ubuntu 16.04LTS? Follow up question: Is there a ...
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Can receive but can not send email ubuntu 20.04

I'm using Postfix, Roundcube 1.4.3 and devcot to receive and send emails on my vps server. I'm able to receive emails but the errors are occurring when sending the email, the mail never reaches the ...
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APT had planned for dpkg to do more than it reported back

I am getting the error W: APT had planned for dpkg to do more than it reported back (0 vs 5). Affected packages: postfixadmin:amd64 [EDIT] full output: root@mail:~# sudo apt purge postfixadmin &&...
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Postfix + Dovecot Windows 10 mail problem

my problem is that when try to login to my POP3 Server from dovecot via Windows 10 Mail (the default, preinstalled program) and select the "ssl required for incoming" and "ssl required ...
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RoundCube page is not shown, wordpress blocks the link

I have installed Wordpress on an Ubuntu server, it runs as it should on my own domain. Now I have also installed, Postfix, dovecot, and roundcube. I followed this installation guide: here, but as I go ...
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Postfix MariaDB SSL Connection Error

I have two servers, both running Ubuntu 21.04. I have Postfix (v3.5.6) installed on one server and MariaDB (v10.5.12-MariaDB-0ubuntu0.21.04.1) installed on the other. When Postfix tries to connect ...
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can't connect to postfix/dovecot mail server connection refused

I was getting milter errors so I commented out the milter line in main.cf Now my client can't connect to the mail server and neither syslog or maillog update I have postfix, dovecot and opendkim all ...
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mail postfix/smtpd[53278]: warning: connect to Milter service inet:127.0.0.1:8893: Connection refused

This issue arose after upgrading my ubuntu release to 20.04 in steps from 14.04 I'm using libmilter1.0.1
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No authentication mechanisms error 10-sasl.conf dovecot sasl configuration 'service auth' section

Here's the default, what do I need to change? There's a section for Postfix smtp-auth that's commented out The q & a's I've read to solve no sasl method error don't mention this section but I ...
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Postfix + devocat + roundcube + WordPress - I can't receive emails and roundcube is showing nothing

I'm doing a migration for my client for his website based on WordPress - from hosting to VPS. I am using apache2 for WordPress. I changed the DNS to the new IP (VPS) in the DNS control panel and ...
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Postfix email address issue

I'm new to configuring mail server in ubuntu server. I would like to setup a mail server in ubuntu server 20.04 LTS with postfix. I follow this guide: https://blog.cloudware.bg/en/set-up-your-own-mail-...
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Error message after runnign every apt, apt-get, dpkg command [duplicate]

After every installation or uninstallation, i get the following message on my ubuntu machine v21.04 newaliases: warning: valid_hostname: misplaced delimiter: linux.. newaliases: fatal: file /etc/...
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use local hostname to block all incoming traffic

In order to prevent ssh and postfix unsollicited connections attempts on my server, i was thinking of banning all traffic, but my ip adress; but the ip changes from time to time - what doesn't change ...
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Dovecot Fatal: master: service(imap): child 102561 killed with signal 6 (core dumped)

I have a postfix mail server that works perfectly, but when I try to connect it with Thunderbird it gives me this error Fatal: master: service(imap): child 102561 killed with signal 6 (core dumped) ...
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managing email server with filter to folders

I'm looking for a solution for managing emails from my domain shared with other colleagues on the team. I would like to manage incoming emails by dividing them into folders in IMAP based on filters, ...
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Rewrite / relay problem with postfix configuration and sender dependent relayhosts - ISP

I have "Ubuntu 20.04.3 LTS" on a raspberry pi 4, and I'm trying to config postfix to use sender dependent relayhosts. Postfix is mail_version = 3.4.13 and i have a dynamic IP. The schema ...
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Cannot access 'home/username/Maildir':

I just started learning ubuntu 20.04 server and trying to set up mail system (To use Thunderbird) I am using online tutorial, to set up Postfix. Here is the link which I following tutorial enter link ...
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Is my postfix mail configuration correct? (Emails aren't being received) [closed]

I'm very much a linux noob and greatly appreciate any help and patience you can provide. I'm running Ubuntu 21.04 Email setup instructions from web host: I'm trying to setup mail to be sent via ...
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Ubuntu Wont Start Up, any Suggestions?

These are the following messages I receive when I boot up my computer: /dev/sda2:clean, 567436/30049216 files, 10011641/12112000 blocks [FAILED] FAILED to start Light Display Manager [ 39.002848] ...
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Unable to change TTL value on local DNS Ubuntu 18.04

I have configured local dns with mailserver, while checking the dns using dig default ttl is always 0. How can i set TTL 60 ? Can you please advise me ? root@mx:/etc/bind# uname -a Linux mx.mailserver....
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Error in postfix, and while installing things?

I recently upgraded to 21.04 from 20.04. And ever since I did whenever I download something, and install it I get this message: Running newaliases newaliases: warning: valid_hostname: misplaced ...
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Errors were encountered while processing: postfix E: Sub-process /usr/bin/dpkg returned an error code (1)

After updating Ubuntu 18.04 to 20.04 to 21.04, i am facing this issue, neither able to install nor to uninstall packages. [sudo] password for commaderwolfer: Reading package lists... Done Building ...
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How to config cron job to send email to outlook for error (include postfix configuration)?

I want to config cron job and postfix, to send email to outlook (need login) for wrong cron jobs. But there is an connection time out when connecting to outlook smtp. Please teach me.
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New mail server and empty mail content - winmail.dat [closed]

I have two IMAP accounts in Outlook 365. If I send an e-mail from my 1st account to 2nd account the e-mail is received I can see the subject but the message body is missing. Instead I can see that ...
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New local users cannot authenticate to get mail - locally or remotely

I've recently created several local users, all of whom get their mailboxes created in /var/mail/<user>, but when trying to run mail as the user in an ssh session, I receive "no mail for &...
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Ubuntu Server - Looking for software to take commands through email an execute them

I am looking for preferably Opensource software for Ubuntu Mail Server . Requirement from software would be: Listening for incoming emails on a certain@email.address . In case the incoming email ...
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Postfix is not receiving external mail

I have an issue with Postfix in which is not accepting external mail. I can send mail locally, but it get's stuck in queue. Post fix was working correctly until I attempted to send out a mailing list ...
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What is this Icon Network Connection?

This Icon Appear In My Pc (Ubuntu 20.04) And Now My Wifi Connection Doesn't Work,Someone Know How Fix it?
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Sending Email from Comand Line in Ubuntu and specify Sender

Installed mailutils on my Ubuntu 20.x Server via sudo apt-get install mailutils. And did basic setup and can send mail from the comand line but run into a few issues. a) One i need to be able to set ...
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Ubuntu 18.04: apt-get install postfix failed : dialog

I am trying to install postfix with the following command (Ubuntu 18.04.5 LTS): apt-get install -y postfix But I get the following bundle of errors: Reading package lists... Building dependency tree.....
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How do I configure postfix to send me emails when there are updates for the server? [duplicate]

OK, I'm using headless Ubuntu 18.04 LTS on a Dell PowerEdge T710 Server, I have already configured postfix to use my gmail account as a relay, for things like sending emails using php, for things like ...
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