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

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6 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 = ...
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25 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 ...
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2answers
40 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: ...
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1answer
51 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 [ ...
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43 views

Can't connect to my email server [migrated]

Recently I transferred my domain to NoIP, and I had to create a mail server. (I had to transfer to noip because I can't setup a static/fixed ip as I am particular not a business, and I don't have a ...
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2answers
24 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 ...
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17 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 ...
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23 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 ...
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32 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 ...
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1answer
32 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: ...
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1answer
34 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 ...
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17 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 ...
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2answers
55 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 ...
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1answer
16 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)?
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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.
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2answers
26 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 ...
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0answers
26 views

Postfix email address display name?

I'm able to send email as support <support@example.com> how can I configure it to send as "Example Support" <support@example.com>? /etc/postfix/main.cf ... myhostname = example.com ... ...
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1answer
38 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
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1answer
22 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
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1answer
50 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
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1answer
27 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 ...
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1answer
27 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 ...
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20 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 ...
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1answer
14 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. ...
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0answers
22 views

Getting mail in a postfix queue from DMZ host to Internal host

Due to security policy I can not connect a DMZ hosted postfix daemon to an internal smart relay via SMTP. The DMZ hosted postfix handles email from a co-located Drupal portal - no internet access... ...
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3answers
43 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 ...
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0answers
25 views

Put email in mailbox AND bounce?

I have a heavily used email address that will have to be taken out of service soon. To indicate the address is no longer available I wish to bounce messages sent to it. At the same time, the user ...
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1answer
54 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; ...
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2answers
31 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 ...
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2answers
47 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
40 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 ...
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25 views

postfix does not accept SASL logins though enabled

Whenever I connect to postfix smtp using these credentials: tls://smtp.example.com:587 I get this error printed in the maillog: SASL LOGIN authentication failed: encryption needed to use mechanism ...
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1answer
50 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, ...
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1answer
51 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 = ...
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0answers
49 views

can't login to roundcube

I installed dovecot, postfix, vimbadmin and roundcube every thing was fine but suddenly roundcube login don't work! checked log error for email and show me : server dovecot: imap-login: ...
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votes
1answer
11 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 ...
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vote
1answer
65 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
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1answer
49 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 ...
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1answer
36 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 ...
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2answers
21 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
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1answer
22 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
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1answer
32 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 ...
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1answer
32 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. ...
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0answers
30 views

Postfix permanently unauthorized access

on my mailserver i found some curious entries in the log file. postfix/submission/smtpd[26582]: process generation: 3 (3) postfix/submission/smtpd[26582]: match_string: mynetworks ~? debug_peer_list ...
0
votes
1answer
15 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 ...
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0answers
23 views

Postfix, Prepend Reply-To to Subject: [duplicate]

I am using postfix and header_checks and I would like to append Reply-To to the subject of emails. Do you guys have any idea how to write the proper regexp to read Reply-To and put is in a variable ...
3
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1answer
22 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
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1answer
36 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 ...
0
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1answer
71 views

Postfix - SMTP mail delivery failed with “Connection timed out” error

I have installed postfix mail server in Ubuntu machine. I am facing some issues with the mail sending to other domain mail servers (Google, Yahoo, Outlook...). I am using virtual domain to send the ...
-1
votes
0answers
16 views

Postifx: remote forward for a specific domain with local failover

On my Postfix instance I wish to remote delivery to another SMTP server for some specific domains, maintaining the whole local spam checks and so on. When the remote server would be unavailable, I ...