Free and open source mail transfer agent (MTA) that routes and delivers email. When asking about postfix problem, please include the relevant maillog lines and output of the following command: "postconf -n" (content of main.cf) and/or "postconf -M" (content of master.cf)

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-1
votes
0answers
42 views

Postfix SMTP mail is sent to SPAM

I have installed postfix mail server in ubuntu machine. I configured the mail server as well as DNS properly. Mails are sent from our mail server properly, but all the mails are listed in the spam ...
-1
votes
0answers
28 views

Configure inbound email using postfix

Postfix logs show "unknown user" when I send what I would expect to be a local user. I have the users specified in a mysql database and postfix has been compiled with mysql support. Other variables ...
0
votes
1answer
69 views

Can't receive emails to my mail server

I created a mail server, following this tutorial: https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-mysql , I configured the email on my email client, SMTP and IMAP and both ...
2
votes
2answers
56 views

Relay host based on destination MX record

I wish to set up Postfix to use an external relay depending on the destination hostname, ie: If destination hostname is *.outlook.com, use relay some_smtp.example.com If any other destination ...
0
votes
1answer
35 views

Postfix/Dovecot on a VM. Problems with understanding port fowarding

I've set up a mail server with postfix and dovecot on a virtual machine running debian 7. At first I basically made a seperate network with a host-only adapter , so host and guest were in the same ...
0
votes
1answer
89 views

Postfix / Dovecot not receiving e-mails in Ubuntu 14.04

I've just setup a VPS with Ubuntu 14.04 at Linode. I have installed Postfix, Dovecot & SquirrelMail to handle E-mail. I am able to send e-mails to other accounts (GMail & Yahoo!) but when I ...
-3
votes
0answers
26 views

postfixadmin installation mysql errors [on hold]

I am trying to install postfix mail server on centos 6.6. the problem is when I install postfixadmin I recieve mysql errors. can anyone help? thanks ;) Invalid query: Duplicate column name ...
0
votes
1answer
86 views

Postfix logging “Fatal: no SASL authentication mechanisms”

I was trying to close the open relay postfix server I had running, as there was spam coming from it, and now I can't get e-mails. The message I get in the log when someone tries to send an email is ...
2
votes
1answer
60 views

Postfix Rejects incoming bounce notifications ( Recipient address rejected: User unknown in local recipient table )

So I've set up a postfix email server, I can send, I can receive. But I noticed some interesting activity in my logs. I was testing an accidentally sent to a non-existent email address, now the ...
-2
votes
1answer
86 views

gmail blocking postfix relay [closed]

Here is partial postfix config: relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous ...
1
vote
1answer
49 views

postfix parameter default_privs

I have set default_privs=myuser in main.cf, which is a perl script, executed in the context of this user. In the perl script I added some debug to print out the user: my $exec_username = ...
0
votes
1answer
47 views

Mailserver creating mail accounts upon “User unknown in virtual mailbox table” on local delivery

I'm running an older Postfix and Courier mailserver with virtual domains. I recently experienced that local delivery (using webmail) to a not existing mailbox would result in that actual mailbox to be ...
1
vote
2answers
96 views

Can't receive mail with postfix virtual alias

I can't receive mail on the virtual aliases (normal email works in and out), i didn't try the virtual domains but that's what i was going for to get to work. So i have a Debian Wheezy 7.8 Build: ...
0
votes
1answer
60 views

124 emails sent at once while one should be sent every five minutes by cron if a certain web service stops running

So I set up a simple script to send an email alert when a certain web service stops running. It has a simple flow of: test = $( curl [address] | grep [a certain string in response] | wc -l ) if [ ...
0
votes
2answers
31 views

Forward mail to “root” user even if RCPT TO field is different? (Postfix)

I have a script that basically connects via telnet to my postfix server and sends email. Of course, it accepts only email when the field "RCPT TO" is like "root@example.com" or "user@example.com". Is ...
1
vote
1answer
35 views

Comparison of methods to send Postfix emails to Procmail

I want to begin using Procmail in order to perform filtering on specific accounts in virtual domains as received by Postfix on my Centos 7 server. In various articles it seems that there are two ...
0
votes
1answer
49 views

Postfix catch-all email, save to combined file

We're running a spam trap / honeypot, and by using the amazing guidance of the members here, I've been able to configure our Ubuntu server running Postfix 2.11.0 to catch all inbound email, regardless ...
-1
votes
1answer
62 views

Sendmail (or postfix or somebody) not speaking SMTP

I've got a Linode Debian server which tries to send email (normally through PHP, but mail from the command line doesn't work either). But the mail never arrives successfully. My two clues from people ...
2
votes
1answer
90 views

Postfix/Dovecot: SASL LOGIN authentication aborted

I use Postfix together with Dovecot (auth/LMTP) on my mailserver. Everything is working fine, but I notice several warnings in the log-files each day: postfix/smtpd[4169]: warning: ...
1
vote
1answer
63 views

Postfix: For a certain address, only allow emails from a certain domain

I've set up my server so that, in order to track down the source of spam (and block it), the email address that I use to sign up for stuff is service_name@example.com (e.g. for Facebook, it would be ...
0
votes
0answers
40 views

How to fix Postfix init script on Ubuntu 14 so it can stop the Postfix it started

I'm on Ubuntu 14 Installed via sudo apt-get install postfix service postfix start works fine and even does something useful But: $ service postfix restart * Stopping Postfix Mail Transport Agent ...
1
vote
2answers
93 views

Why do I have to manually copy /etc/services and /etc/resolv.conf into /var/spool/postfix/etc?

I encountered this problem with my Postfix install: https://www.virtualmin.com/node/23909 i.e. I was getting the error: postfix/smtp[130]: fatal: unknown service: smtp/tcp and like at the url ...
0
votes
1answer
34 views

How to drop orig_to using postfix virtual domains?

With the virtual domains, the final mailbox receiving the email gets the orig_to email address in its header. Is there a way to prevent this (i.e. address translation without keeping the orig_to)?
0
votes
0answers
21 views

Reject outgoing mail if sender is X and recipient is Y [duplicate]

Is there any way I can create a list to not send an email if the sender is X and the recipient is Y? I see options to create a reject list for either, but not a combination.
1
vote
2answers
83 views

How to enable RBL checking in postfix?

How to enable RBL filters in postfix? My current configuration: submission inet n - n - - smtpd -o syslog_name=postfix/submission -o ...
0
votes
3answers
129 views

Certificate on port 25 when trying to secure SMTP with POSTFIX

Background I think I am close to getting my POSTFIX setup to my liking. I've run some SMTP online checks and my SMTP passes all the basic security tests. I get a certificate warning in Thunderbird. ...
2
votes
1answer
31 views

Postfix silently ignoring recipients

I have a weird issue wherein an email is received to my mail server running Postfix with multiple recipients on the same domain and only one of the recipients will receive the message. An example ...
0
votes
1answer
191 views

Postfix in Docker container not forwarding virtual aliases

I am trying to configure Postfix for the first time. I do not need mailboxes, I want only virtual aliases, forwarding info@example.com --> myname@gmail.com My Postfix is running in a Docker ...
1
vote
1answer
51 views

Postfix very slow delivery

I installed postfix + dovecot + mysql + amavisd + spamassasin. Everything works fine (mail is sent and received) except that the received mail stays too long in the queue (for about 15 minutes) before ...
0
votes
1answer
37 views

Postfix with external SMTP

I'm trying to install Request Tracker and configure it to use an external SMTP server to sent mail notifications. I've already put postfix to send emails using this tutorial, but it keeps sending then ...
0
votes
0answers
23 views

Sympa suddenly changed the domain of all lists

we have on our server sympa with postfix installed. Everything was working fine for about 6 months. On our server were about 100 lists with the format listname@foobar.de Since yesterday the format of ...
1
vote
1answer
17 views

Postfix after-queue filtering for local destinations only

I need to run all mail addressed to local domains (as defined in vmail_domains) through a simple after-queue content filter which then re-injects the processed emails back into Postfix via sendmail. ...
0
votes
3answers
100 views

postfix/dovecot - run script when mail is received

I need to implement solution on my postfix/dovecot server which will execute bash script every time message arrives. For this purpose I did following things in master.cf configuration myhook ...
0
votes
1answer
130 views

Mail sent from my POSTFIX mail server goes to gmail spam [duplicate]

I have set up a POSTFIX server on my VPS and mail sent trough it is going to Spam in gmail. Here is my message: Delivered-To: sgenov@gmail.com Received: by 10.140.43.75 with SMTP id d69csp350632qga; ...
0
votes
2answers
35 views

Get postfix to send emails to the mail server

I have 2 servers. One is a fully configured mail server that receives emails from any sender. I also have my web server that has apps like logwatch and tripwire installed and they all installed ...
0
votes
2answers
99 views

Amavis to Postfix forwarding

I have a postfix mail-server and want to use amavis for spam and virus detection. I followed this tutorial to add amavis to my running mail-server. I added to /etc/postfix/main.cf: content_filter = ...
3
votes
1answer
90 views

Postfix SMTP client not verifying against system-wide CA certs with tls_append_default_CA

On my internet-facing Postfix SMTP server running Debian Wheezy, I'd like to set up a secure connection with some known servers. Some are my own, running my own PKI/CA, some are public SMTP servers ...
0
votes
1answer
108 views

lots of email from one user, probably spam

I'm getting a continuous flow of messages in the mail.log file of our postfix mail server. Here is a santisied sample: postfix/qmgr[7883]: 03DF631E8F: from=<user@problem.com>, size=1021, ...
1
vote
1answer
69 views

Postfix relay and store

So, I am setting up a backup mail server. I got it relaying messages (saving them to queue and then, as soon as primary's up, deliver them to primary). It took following two lines: relay_domains = ...
-1
votes
1answer
15 views

Postfix Relay acces denied on only one server with identical setups

I'm in the process of setting up a postfix server for my two servers. To ensure I have identical setups I try to avoid manual command settings and build and run an Ansible playbook with the necessary ...
1
vote
1answer
183 views

Postfix TLS Error

I'm working with a Postfix/Dovecot/Roundcube setup, aiming for a virtual user mail system that can send mail through the internet, as documented here. Everything seems to work well; Dovecote shows no ...
0
votes
1answer
77 views

Postfix alias only forwarding to local users

I have set up Dovecot and Postfix using this tutorial, which works for receiving and sending mail. The aliases also work fine, although only for local users. I.e. I can make a forward from ...
0
votes
1answer
54 views

How do I hide the originating IP address of a sender in Postfix?

I run a small mail service that currently supports a few hundred users. When someone sends mail and someone looks at the source, the persons real IP is contained in, IIRC X-Originating-IP. For user ...
1
vote
2answers
24 views

How can I get Postfix to log the 'From' MIME Header from emails

I want postfix to log the 'From' Header, and maybe other headers from the email content (not the Envelope header) in order to assess DMARC domain alignment in outgoing email. I know about using ...
0
votes
1answer
54 views

Postfix: delivering “local” mail to GMail, but sending other mail

I need to set up a server to send messages to a few different people automatically. The recipients are at two different domains, let's say mydomain.com and otherdomain.com. The messages need to come ...
0
votes
1answer
51 views

migrate postfix to another server with same domain

I need to migrate server with Postfix. IPs will be different, domains will be same (example.com) What problem: I've moved all settings and mailboxes from old server(1.1.1.1) to new(2.2.2.2). On new ...
1
vote
1answer
61 views

Postfix: Forward all locally-delivered email to an external address

I have a server that is meant to deliver emails from PHP but not receive any emails. My domain MX records point to a different mail service and I have Postfix configured to not handle any FQDN emails. ...
0
votes
1answer
20 views

No-Listing policy with postfix (ubuntu)

I'm running an experiment on a virtual machine. In the virtual machine I've installed ubuntu and Postfix as a mail server. I followed the guide: https://help.ubuntu.com/community/Postfix , only the ...
3
votes
1answer
41 views

Postfix not communicating with opendkim

I want to setup automatic signing with DKIM for all outgoing emails. This ir virtual private server and hosts a single website. I have tried lots of tutorials on how to implement dkim email signing, ...
0
votes
1answer
81 views

Postfix not sending authentication when relaying to local smtp server

I have been trying to get my postfix server to relay all of my message to a local SMTP server. As far as I can tell I have everything set up right, but I get a 550 Authentication error. My local SMTP ...