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Questions tagged [postfix]

Postfix is a free and open-source mail transfer agent (also "MTA"), written in 1997 and still actively developed.

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Can't login to mailbox using Postfix/Dovecot/MySQL: “Failed to initialize quota”

I'm trying to setup my own mail server and I am stuck on one Dovecot error, “Error: Failed to initialize quota.” Anyone have a solution? Feb 16 01:10:25 outgoing dovecot: imap(ichanged@original....
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Unable to use port 587 for Incoming mails on Postfix /Ubuntu

I need to understand.. I am trying to put on mail service on my Postfix/Ubuntu station using . Provided that my ISP has blocked port 25, I targeted to use port 587 instead. So, I made changes in main....
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Postfix: Acting based on the interface on which the mail was received

I have this postfix instance to relay all mail to a relay host but I wish to make this instance also an archiving MX for a domain. Initially the configuration was: mynetworks = 127.0.0.0/8 ...
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18 views

Emails not getting delivered to users in China

I’m facing a strange issue with a codeigniter application which sends emails to registered users. The issues is that most Chinese users are not receiving emails which were sent from the application. ...
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22 views

Valid DKIM but “body hash did not verify” error on Outlook / Hotmail / Live?

Why do I get dkim=fail (body hash did not verify) on Outlook / Hotmail / Live when I have a valid DKIM setup in place? I've made sure that my SPF, DKIM, DMARC records are set up correctly and the ...
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8 views

Malformed DKIM Body signature, Postfix

I am having some trouble with my email server. (postfix/dovecot on ubuntu LTS) I am getting an invalidated DKIM body signature. This is what I get from the header. DKIM-Signature: v=1; a=rsa-...
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13 views

How to automatically organize a lot of mail aliases in Thunderbird?

I have a self-hosted mail server. So I have setup an alias like so @foo.bar root@foo.bar Means every email sent to [alias]@foo.bar will be redirected to the inbox of root@foo.bar. I use it to have ...
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20 views

iredmail TLS library error

I've installed iRedMail version 0.9.9. I selected nginx, roundcube, netdata, Sogo, mysql for options. It is installed in Ubuntu 18.04 LTS and using letsencrypt for certs. Installation looks fine and ...
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15 views

Postfix fatal: unsupported dictionary type: mysql, fatal: cannot execute /usr/sbin/postconf

I am trying to run a mail server, installed postfix and dovecot but I get the following errors when starting postfix. Jan 22 20:09:19 ub18 postfix/postfix-script[10135]: starting the Postfix mail ...
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1answer
20 views

Is there a way to encrypt mail password when configuring mail notifications using postfix?

I am able to configure mails using postfix in ubuntu.I followed the below link to do so. https://documentation.wazuh.com/current/user-manual/manager/manual-email-report/smtp_authentication.html But I ...
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23 views

Postfix configuration - canonical address mapping

I am trying to configure the mapping in postfix to take all outgoing mail and redirect it to certain inboxes. I have a working setup which will rewrite/redirect properly in the canonical_recipient ...
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1answer
28 views

I'm stuck with postfix on debian: 554 5.7.1 Relay access denied

I'm really stuck with a problem on my postfix installation for a few days ago. I know there is a lot of stuff about this on the net, but none of what I tried worked. Here is my problem: I can send ...
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12 views

Set up remote postfix to relay/proxy for LAN-based postfix server

So I'm setting up a personal mail server, which is running on my home network using postfix and dovecot. At the moment, my domain name points to my home network's IP address, and I have port ...
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19 views

how receive mails to - info - email user

I'm running virtualmin on my server, that have two domains let name them firstdomain.com and seconddomain.com. My goal is to receive mails on email info@seconddomain.com. So these are the steps that I ...
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What is reloading postfix twice at 4AM

Centos 7, postfix I get a daily reload of Postfix. It's happening twice, back to back. Jan 8 04:02:08 tn2 postfix/postfix-script[8927]: stopping the Postfix mail system Jan 8 04:02:08 tn2 postfix/...
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19 views

Regex In Postfix

I'm not very good at regex, and could use a little assistance with reject some emails on my postfix install. I have one email address - example: my6dogs@domain.com. I've been getting a lot of spam / ...
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1answer
37 views

Postfix and Sparkpost relay authentication failures

Until recently I have had no problems with relays and forwards from Postfix through Sparkpost. Now I get authentication errors 530 5.7.1. The server is running Debian Stretch. The settings in Postfix ...
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1answer
8 views

Send Email as Root *Before* User Login?

I'm not sure I'm on the right forum for this, but I found some hints in another thread that suggest the knowledge base might work out here. I've got a startup script running as root (managed by ...
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23 views

Postfix - stripped mail from header

This Postfix/Dovecot server is in a closed lab environment and can't send or receive to the Internet. My goal is to be able to set the mail from header to any address (not only local) to any account ...
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23 views

Dovecot can't read other userdb than /etc/passwd

I had the last day alot of trouble with the dovecot userdb. The problem was that dovecot only read the /etc/passwd and not my custom /etc/dovecot/users file. I changed the /etc/dovecot/auth-...
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28 views

Can't get Activation Mail in Mailchimp with Postfix

I have a postfix-mailserver, which works for incoming and outgoing mail. Everything was fine until I created a Mailchimp-Account. The Activation-Mail wasn't recieved by my postfix-Server. Several ...
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15 views

SMTP to gmail loop back my domain postfix

I am trying to send gmail my local postfix. I want to sent from info@example.com to whitebear@gmail.com I am using bear user to sent email to SMTP. It looks like sent correctly. [bear@jp1 ~]$ ...
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What is the postfix equivelant of exim -bt test@example.com

With exim I can do a "blind test" of an address from the command line. exim -bt test@example.com test@example.com router = dnslookup, transport = remote_smtp host example.com [2001:db8::1946] ...
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1answer
91 views

Multi domain mail server

I have to install a MTA on Debian server (postfix or exim). It will serve email for 3 domains. It is not a problem to receive email for multiple domains but I am not sure about sending (SMTP). There ...
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1answer
46 views

Looking for strict local mail server (no email sending and receving from outside world)

I am looking for a mail solution (or server) that work only inside an office and only employees inside the office can send and receive the email from each other. I don't want the employee to send ...
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1answer
34 views

Can connect (telnet, dovecot etc) to my own server from an external network but not when I am on the same lan

I have a server (mail - postfix+dovecot, web - apache) on a kvm guest where the host is on a local network behind a normal router (zte or whatever the ISP provided). KVM guest has an IP on the same ...
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1answer
36 views

How to receive external emails on email server

So far I have an email server set up using postfix / dovecot on a raspberry pi (debian). I can send emails externally and internally no problem however can only receive emails from within my server. ...
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1answer
39 views

postfix smtp_bind_address directive not working

I recently migrated to a new server (running postfix 3.3.0) and noticed that the smtp_bind_address setting in master.cf is having no effect. The server in question has 10 ipv4 addresses and it's ...
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1answer
60 views

Don't deliver mail to certain addresses

I have a Postfix 2.10.1 running on CentOS 7. This service will deliver email notifications that are sent to the postfix via SMTP. Now, some users should not get those notifications. Since the sending ...
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1answer
24 views

How to setup inbound email correctly? MX settings?

Summary So I have mostly set up hosting emails. I can send mails from my phone through IMAP with my new server however I never receive any mail. I have tried the following: telnet localhost 2525 ...
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2answers
61 views

Setting up a SMTP relay that goes back and forth

I have a Postfix SMTP server running at home which can't send or receive mails because of an ISP restriction. (no incoming port 25, nor outgoing) I have a VPS with a public IP that I want to use to ...
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1answer
13 views

Basic Postfix configuration not working?

So all I am trying to do is send a test email from my web server. I do own the domain name and viewing my website itself works perfectly fine. I have installed postfix brand new out of the box and ...
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Spams sent from an external email address but email address sender changed to my own email address in my inbox [closed]

I recently received some strange spams on my mail server, i'm using zimbra 8.x. bundled with postfix. I think i've secure postfix enough to avoid receiving spams from my own domain by an external ...
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1answer
38 views

Mailserver Dovecot+Postfix/-Admin Authentification failed

everybody. I've been looking for the mistake in a few days now.. When i want to connect my Webmail with my E-Mail Server via Imap/Smtp, i got this error: "Authentification failed". When you need more ...
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36 views

Postfix difference myorigin mydomain

I understand the meaning of myhostname and mydomain in postfix config. First is used to identify server, second do identify domain and configure other params. So myorigin is: The domain name that ...
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2answers
79 views

What is the correct format of a postfix sasl password database map file?

It is possible to request postfix to fetch sasl login information for its relay server from a database. I then have this relay server fetch the very same login information. How do we format this ...
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21 views

Cannot send SMTP E-mail through terminal after installing SSL

I had setup the mail client to send E-mail via terminal on my ubuntu 14.4, which was working fine until I decided to enable ssl. Now whenever I try to send using the command echo "Test mail body" | ...
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82 views

Exclude postfix log from syslog / journald

Is it possible to configure journalctl to exclude certain sources, like postfix, from the system log? Or can I exclude postfix messages from the system log by specifying another syslog facility (...
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8 views

Mailman directs to host name instead of dedicated domain

I have mailman installed on machine called "a.b.com". The mailing lists it manages are, however, installed under "lists.b.com". They are maintained by going to "lists.b.com/cgi-bin...". When mail (i....
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1answer
234 views

Dovecot not working, apparently not listening to ports 110, 143, 993 or 995

My new mailserver with Postfix (3.3.0) and Dovecot (v2.2.33.2) doesn't work yet, since last time I installed a few years ago and now, the configuration changed a lot I noticed, e.g. in Dovecot the ...
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1answer
476 views

Gmail pop3 ssl can't fetch mail server

Suddenly gmail can't fetch anymore mails from my mail server (postfix, dovecot), with the below message: Unable to establish secure SSL connection to mail.domain.com Server returned error: "SSL error:...
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108 views

Postfix pipe emails to certain email accounts only

I have configured postfix to run a script when email is received. The script gets tirggered whenever email is received on postfix. However the problem is that it is being triggered on all the email ...
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1answer
77 views

Use PostFix on Ubuntu 16.04 with Outlook, Works?

Folks, I want my own email address, from my domain. I think installing PostFix, and then connecting Outlook to it, I get a way to get it, and respond to emails locally. That's true? I use Ubuntu 16.04....
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27 views

Postfix configuration, multi domain gateway and user exceptions

Basically I got some basic understanding about the configuration of postfix, but there are still a few questions left, I try to wrap my head around. Assume there are three servers, MX.somedomain.com, ...
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1answer
140 views

How are these emails entering my mail queue, and why is Google reporting “Bad credentials”?

I am using a combination of Postfix, Dovecot and Roundcube for a web mail system. I have a Google Apps for Domains account so am using Google's SMTP server for outgoing mail. I noticed a couple of ...
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1answer
146 views

How do I change the mailbox path in Linux?

Running Ubuntu server 18.04 and have installed PostFix and mailutils. I have sent some test emails to postfix and they are stored in a plain text file at /var/mail named as the recipient alias. When ...
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74 views

Gmail detecting mails as spam [Postfix]

I am running an ispconfig web/mail server and the problem is that my mail ends up in spam at google. I have everything set up rDNS, DKIM, SPF, dmarc, so i dont think that the record part would be an ...
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216 views

Wildcard in OpenDKIM's Signing Table

I have been following DigitalOcean's tutorial for configuring OpenDKIM, and when they get to the SigningTable portion they include a wildcard *: Create a signing table: sudo nano /etc/opendkim/...
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208 views

Postfix concurrency limit per IP

We have a larger ESP e-mail setup and have trouble sending e-mail to a single site/company. That company has very low concurrent limits so that the default postfix settings that we use trigger a ...
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151 views

Dovecot sending everything to spam

I have a server with postfix + dovecot + spamassassin, and whatever spamassassin marks as spam does go into the proper folder. The problem I have is that the majority of emails I get, even the ones ...