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
vote
1answer
77 views

Postfix aliases only work from local users

I just setup a Postfix instance and added a few names to /etc/aliases. For example, take this: root: toor, nobody foo: root, root@gmail.com foo2: foo, example@example.com I ran newaliases ...
1
vote
1answer
17 views

Zimbra 8.04 policyd… Message quota is been counted by count of recipients

I've ran onto a behavior issue that I cannot see how to fix. I've configured Zimbra (8.0.4) with policyd, following this tutorial Step1: Create a policy Step2: Create a group (list_domain) Step3: ...
0
votes
0answers
11 views

Email transmission delays between Gmail and our server

A few days ago I started setting up a mail server for our company: OS: Debian MTA: Postfix DNS: bind9 Firewall: pfSense Port forwarding for ports 25 and 53 through pfSense for passing on DNS and ...
0
votes
2answers
30 views

Helo command rejected: Host not found - Setup postfix to accept sending mails from my home server through my public server

I would like to receive system emails from my home server. So I'm trying to configure postfix to do that through my public server. My public server has a fixed IP, while my home server is in a private ...
0
votes
1answer
25 views

Postfix on Ubuntu not delivering mail to a few addresses

On my ubuntu server my WordPress installation sends email the normal way using wp_mail (which in turn uses php mail()..). The server is set up with Postfix for delivery. Recently there's been a ...
0
votes
0answers
16 views

Postfix: 535 Incorrect authentication data

I just set up my mailserver with Postfix 2.9.6 and Dovecot 2.1.7 and I can send mails via terminal and can receive mails via terminal and my mail client (Mac Mail). However I'm not able to send mails ...
0
votes
0answers
11 views

I was asked IMAP password when logging on cyradm. How to reset IMAP password?

I am setting up postfix on my VPS, and when I tried to log on using this command: cyradm -u cyrus localhost --auth plain It ask me the password first, and I input the password for user cyrus. But ...
-1
votes
1answer
17 views

postfix mta header “received by” server hostname for virtual domain

I have sender_dependent_default_transport_maps all set-up for virtual domains with their own IPs for outgoing mail - they work. However when postfix's sendmail adds an email to the queue, apparently ...
1
vote
0answers
14 views

Postfix's received emails put in /var/mail/user/.Sent Messages

For some reason, emails that I receive on my Amazon Linux EC2 instance, running postfix and dovecot, are put in the directory /var/mail/<user>/.Sent\ Messages, instead of the expected ...
2
votes
3answers
2k views

Postfix : error: unsupported dictionary type: mysql

I've a problem w/ postfix problem: # tail -f /var/log/mail.err Aug 20 17:57:50 myserver postfix/smtpd[8243]: error: unsupported dictionary type: mysql Aug 20 17:57:50 myserver postfix/smtpd[8243]: ...
0
votes
2answers
53 views

2 email server and one static ip

I need to manage two mailservers (postfix and dovecot on different machines) using a single public IP. I thought I solved by putting non-standard ports on the second postfix instance, but I do not ...
1
vote
1answer
85 views

postfix/policyd-weight[11026]: warning: child: could not open RBL Lookup Socket to config

i have some problems with my postfix server. Here the error message from my mail.warn: Dec 24 14:43:36 serv postfix/policyd-weight[23064]: warning: child: could not open RBL Lookup Socket to config: ...
-3
votes
0answers
14 views

How to create a catchall email address through Webmin? [on hold]

I've searched quite a bit, and haven't found anything very straightforward. I'm using webmin 1.750. Some people said to install postfix (I have now done this). Should I be doing it through postfix? ...
3
votes
1answer
26 views

Dynamically limit postfix attachment size

For a project I am currently working on, we received a requirement for a 'dynamic' mail attachment size limit. For postfix (which we currently use) this would be easily implemented using the ...
1
vote
3answers
366 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 ...
-1
votes
0answers
11 views

Postfix - Isp Config - Reject sent email where from is not client address [on hold]

I am looking for solution for this problem: I need to reject outgoing emails where from in email header check is not valid ispconfig mail account to protect outgoing spam from www-data. Can anybody ...
4
votes
3answers
73 views

Foreign mail server returns “502 Command not implemented.”

I am using Postfix to communicate with foreign server and send a mail. Every time when I try send mail using Postfix, I get this error: (host mx2.seznam.cz[77.75.76.32] said: 451 Local Error (in ...
-1
votes
1answer
275 views

postfix unable to receive external emails

I have setup an email server with postfix and dovecot. Installation went fine but I am not able to receive emails from external users(gmail, yahoo etc) but I can send email to external users. When an ...
0
votes
1answer
18 views

Postfix with dovecot unable to deliver message

I'm trying to setup a mail service on my server with this and this articles. After finishing configuration, i got working user accounts - its possible to successfully login on each account with ...
0
votes
0answers
22 views

Postfix: on multi-recipient e-mails of same domain, how do you remove all but one (first) address?

We have a shared IMAP mailbox for a business. Customers are not used to not having to CC tons of people with us, so they CC everybody, which creates noisy duplicates in our shared inbox. How can I ...
2
votes
2answers
2k views

What's wrong with my postfix setup routing through Amazon/SES? (smtp_sender_dependent_authentication)

I'm trying to use Amazon SES as an SMTP gateway for my EC2 Ubuntu 'precise' server, using different SES accounts for different originating e-mail domains. The postfix documentation seems to imply that ...
0
votes
0answers
28 views

Spamassassin always says ALL_TRUSTED

So I've got a mail relay (Postfix/amavis/SpamAssassin) running that seems far too lenient on spam and I'm trying to diagnose why. Some background: we provide internet service to hotels and similar ...
0
votes
1answer
30 views

How can I strip or rewrite the sender's name of a from address when using postfix?

Objective I'm trying to configure a CentOS 7 system so all mail sent to local system accounts gets redirected to an alternate email address. For example, if mail is sent to root I want it to be ...
2
votes
2answers
2k views

Postfix - Dovecot - Can Send Emails But Wont Receive - NOQUEUE - Relay Access Denied

I have set up a mail server on ubuntu. Ive checked ports are open and I've double checked all config files, checking with every google search result I could find. Most of the similar posts have more ...
2
votes
3answers
204 views

What is the sendEmail equivalent on CentOS 7?

I am trying to follow the steps below. But there is no sendEmail on CentOS 7. I have looked at a few alternatives like Postfix, but I am not sure of the script commands. Alternatively you can use ...
1
vote
1answer
46 views

Postfix acting like an open relay for domain mailboxes

I have a mail server running on Debian 7.8 configured with postfix 2.9.6. My restrictions are these: smtpd_sender_restrictions = reject_sender_login_mismatch, reject_unknown_sender_domain, ...
1
vote
0answers
43 views

Postfix / Relay Access Denied on mail server host [duplicate]

I checked the different answers on google and on this site about this kind of issue, but couldn't find any matching ones. I just can't send email from local (webmail) or from external mail clients to ...
-1
votes
2answers
69 views

Reject email if “rcpt to” does not match relay_domain - Postfix

My mail server currently shows up in mxtoolbox as Open Relay. Objective: Allow SMTP connection only when RCPT TO: says example.com What changes should I make in it so that, it would reject the ...
1
vote
1answer
27 views

Update of SpamAssassin

We're running SA as a filter to Postfix and just completed an update (of SA) from 3.3.2 to 3.4.1. The spamassassin, spamd, and spamc executables have all been verified as the newer version. ...
0
votes
2answers
234 views

postfix: set from address when relaying to google mail

I use postfix on a debian server and I have it configured to use gmail as a smarthost (hope I've got that right). How can I set the From: address on my outgoing mails? I need to change that on every ...
-1
votes
1answer
57 views

setup postfix SMTP on amazon ec2 [closed]

Im trying to setup a postfix SMTP mail server on my amazon ec2 instance. I followed this guide http://cybart.com/how-to-install-and-configure-postfix-on-amazon-ec2/ and many others I found which ...
-3
votes
0answers
28 views

vestacp external DKIM key records not working [on hold]

For testing purpose i hosted one of my domain on vestacp and configured mail server on another server, i use opendkim for outgoing mail signing on mail server and the public key added in vestacp DNS ...
1
vote
1answer
75 views

Postfix: 'Relay access denied' - all incoming mail is rejected

I am testing my PostFix setup by sending email from my gmail account to an account on a virtual domain. Postfix's response is invariably: NOQUEUE: reject: RCPT from ...
3
votes
1answer
50 views

Postfix: Fall back on SMTP relay that has internet access

I have a scenario where I have: Postfix server M (Stores mail) Postfix Server A (Relays mail using internet connection IA) Postfix Server B (Relays mail using internet connection IB) Internal DNS ...
1
vote
3answers
274 views

Is postfix the only program that should be using port 25

My server IP was blacklisted for sending out spam and I am tracking down the program sending spam. I did netstat, and it shows a lot of programs using port 25 e.g tcp 0 182 ...
-6
votes
1answer
43 views

Why use both Dovecot and Postfix? [duplicate]

Just out of curiosity, there are dozens / hundreds of tutorials helping you setup a Dovecot - Postfix mail server. On the surface, both of them are email servers, why use both? Mail servers are ...
1
vote
0answers
48 views

Dovecot doesn't fetch mail from Postfix

I have installed Postfix on remote machine that successfully sends emails as well as receives. In order to connect to that remote server through email client (Thunderbird) I have installed Dovecot. ...
0
votes
0answers
27 views

SASL Auth against LDAP

So I am running into a whirlwind of issues with my cyrus install. I am setting up a multi-domain kolab groupware solution. I am on centos 6.7 I am getting this flooding my error logs when I try to ...
4
votes
1answer
47 views

Creating a postfix alias “all@domain.tld” to send to all users of a domain

I'm using Postfix + Dovecot with a MySQL database as backend and PostfixAdmin to administrate users and domains. Now I'm looking for an easy and automated approach to define per-domain alias of the ...
0
votes
0answers
27 views

How do i setup my server so that gmail does not mark it as spam [duplicate]

I have setup my domain mydomain.co.za and put an spf record to my server ip, example 123.456.789.123 when i send an email to google my postfix log shows Aug 24 20:39:25 myname postfix/smtp[21855]: ...
2
votes
1answer
55 views

Postfix - sender dependent relaying for multiple domains

I have spent the last couple of days going through SO questions and the Postfix documentation but have not succeeded in figuring out what I'm doing wrong. My situation is as follows: I have a server ...
0
votes
1answer
50 views

postfix/qmgr[…]: warning: connect to transport private/[myhostname]: No such file or directory

If I send an email from my client to an other person, the following I found with systemctl status -l postfix: postfix[20012]: Starting Postfix Mail Transport Agent: postfix. postfix/master[20119]: ...
-3
votes
1answer
26 views

Postfix setup issue

I'm trying to allow an external server to use my webserver (running postfix) to relay email through. I've gone through several articles on setting up iptables and I think I have it, but I still can't ...
1
vote
2answers
36 views

How do you configure postfix to only try unencrypted email with a fix list of IP address/domains?

A PCI scan told me to stop using TLS 1.0 for e-mail. I'm using postfix, so I disabled TLS 1.0, and all traffic for 1.0 stopped. Then the next day I looked at the logs and I see a lot of this... ...
0
votes
1answer
41 views

PFsense postfix troubleshooting - SMTP headers [closed]

I am trying to setup google as mail relay but running into some troubles. I get an error that 550-5.1.1 The email account that you tried to reach does not exist My custom main in pfsense looks ...
0
votes
4answers
2k views

Bugzilla not sending emails, even to the test file?

I have installed and setup Bugzilla3 for my domain. Everything is working properly except for the email functionality. The server uses Postfix, and that works for my PHP application, and command ...
1
vote
1answer
48 views

Dovecot: virtual and local users homonyms: Mail access for users with UID 1000 not permitted

Well, the case seems simple but I can’t find a satisfactory answer. I have a Postfix/Dovecot installation with the later configured to work with virtual emails which works like a charm... for ...
1
vote
4answers
3k views

Postfix - How to write outgoing mail to harddrive (not internet)?

In order for my webb-app unit tests to work in my local development environment, namely where email delivery is concerned, I installed postfix. Come to find out my co-workers are now getting numerous ...
-6
votes
1answer
58 views

Postfix not recieving mail from Gmail

I've Installed Postfix with Dovecot on CentOS 7. Everything is working good when I try to send / recieve emails from services like Outlook.. etc. However, there is a problem when I send an email from ...
-1
votes
0answers
20 views

How to configure Postfix to relay mails to remote Mailman server?

I want to setup a postfix server a.example.com on one physical maschine and a postfix/mailman server b.example.com on another maschine. All mail is received by server a.example.com and has to be ...