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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0
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0answers
4 views

postfix body check file content

I come across a strange scenario. I'm using a file containing lines of keywords for postfix to scan so that it can reject spam messages. Now this line causes postfix to think an email containing ...
0
votes
0answers
5 views

Postfix GMAIL Relay – Issues with Mail

I’ve installed the latest release of Postfix onto a CentOS7 server and have configured it to relay any mail on test@mydomain.com to send to an account on Gmail. The problem I have is that whenever ...
0
votes
0answers
7 views

Postfix complaining about not having an quals sign after attribute

I'm running Postfix, Dovecot, SpamAssassin, ClamSMTP, and OpenDKIM on a Debian Jessie VPS. Everything works fine but my only problem is that Postfix is complaining that there isn't an equals sign ...
0
votes
0answers
16 views

postfix mails stuck in mailqueue

I ran into a problem, I'm trying to set up postfix mail server (I'm using webmin), everything seems to work fine, I successfully connected outlook to POP3/SMTP, but as soon as I send an email, it gets ...
0
votes
0answers
18 views

Smtpd_sender_login_maps isn't working for Postfix

So I'm trying to set my postfix up so that only certain users can relay their own emails. Instead of allowing them access to all the emails on the server. At the moment with the setup below any ...
0
votes
1answer
28 views

Outgoing spam from postfix using my domains

I get a lot of spam outgoing from my server which uses fake emails but real domains (that are hosted on my server Linux Debian Squeeze). These all have "msg" plus a random number as Email address. ...
1
vote
2answers
13 views

Postfix would not auto-create the Maildir for incoming mails

I am trying to setup a mail server, I went over tons of tutorials on how to do this with Postfix + dovecot + MySQL, but none was error-proof and I always got stuck at some point with an error, so I ...
0
votes
0answers
8 views

apache postfix trying to change user “from” address from apache to domain account

This is the same question as of apache sendmail: trying to change user "from" address from apache to domain account but its for postfix. User did not actually mentioned what he did with ...
-1
votes
0answers
15 views

How to setup a simple email account to receive emails and fetch them via an ordinary email client? [on hold]

I have a VPS with Debian Jessie on it running default unconfigured postfix on it. An application is running on this server and it's sending mails on specific events. It was sending them to an gmail ...
0
votes
2answers
31 views

postfix block mail to a domain only for a specific destination domain

I have a mail server that hosts many virtual domains. The owner of one virtual domain that is on this server asked me to block mails coming from an external domain to his mailboxes. I have this ...
-1
votes
0answers
17 views

Script sending mails from our server [duplicate]

I apologize if this is asked many times. My OS is CentOS and postfix with Plesk 12.5 I found that one PHP script is sending mails from our server. Strange this is that its sending from our domain ...
0
votes
1answer
11 views

Postfix authentication issues after I configured TLS

I've setup my mail server with Postfix for SMTP and Dovecot for IMAP. Instead of virtual users I simply listened to the suggestion of someone from Server Fault and went with Linux users. I'm using ...
0
votes
1answer
24 views

Switching IMAP/POP3 login username from username to username@domain

I'm running a CentOS7 server with Postfix, Dovecot, Roundcube, etc. Right now everything is working. Users log in and check their mail by their username only. I would like to alter this so they ...
0
votes
1answer
46 views

Setting up mail accounts without real Linux users

I've setup Postfix and Dovecot on my Ubuntu Server. My aim is to create 27 mail accounts that can receive and send mail to everywhere. I've got emails to not show up as spam in Gmail, Yahoo and ...
0
votes
0answers
29 views

Postfix spam in queue

Recently our company system administrator quit his job and it is unreachable. I was his coleague and helped him with the IT stuff. After he left we noticed our mail system stopped working. So I ...
7
votes
1answer
55 views

Best Practice: notify email sender that their reverse lookup is broken

This probably should be a wiki, not entirely sure. Before I begin, the external server that performs scanning is a custom amavis/postfix/fortigate pipeline; it is suggested that any changes work ...
0
votes
1answer
10 views

Configure dovecot using postfix to send email from any email to any email

I am trying to configure smtp server to allow my applications on the server to use this smtp to send email to/from any email address. I have used all the configurations from http://www.server-world....
0
votes
0answers
8 views

Disable bounce messages to original sender & forward it to another address via postfix

I want configure my mail server to prevent all bounce messages to be sent back to the original sender & forward those bounce messages to the postmaster instead. (Don't want to discard all these ...
0
votes
1answer
27 views

Postfix Mail Server & hosted Gmail relay setup

I am trying to setup our web server so that it can send emails from various web apps to reset password etc. Our mail is hosted by Gmail with a custom domain eg. mydomain.com. Right now emails going ...
0
votes
0answers
13 views

Nested MTA in postfix in Ubuntu 14.04

I have a machine M1 which is in environment A and another machine M2 in environment B. Machine M1 has access to our mail server. It can send mail to our email addresses by connecting to our mail ...
0
votes
1answer
15 views

Permission denied for dovecot to access mail directory

I have setup a mail server using Postfix & Dovecot on CentOS 7. When I try to fetch email using thnderbird or any other email clients, I get this error in my maillog file: Jun 19 01:38:23 ...
0
votes
0answers
10 views

setting virtualmin SSL certificates for Dovecot and PostFix fo each domain

In Virtualmin, If I apply one of the domain's certificates to dovecot or PostFix via Server configuration > Mange SSL Certificates > Copy to Dovecot / PostFix, The certificate is copied to the ...
0
votes
1answer
28 views

Mail sent by Postfix / Dovecot setup going into spam folder

I am running a Debian 8 VPS for a couple of months now. I running several services, including a mailserver with Postfix and Dovecot. As far as I can tell, I have everything set up correctly. My IP is ...
-2
votes
0answers
47 views

Configure postfix to change outgoing email address from account@localhostname to another email address [closed]

There are several accounts already created in postfix. They send out automatic emails to users like i.e. to notify them that their account was successfully created. Currently these automatic emails ...
0
votes
1answer
16 views

SMTP Error - Dovecot/Postfix

Both Dovecot and Postfix are working perfectly. Especially for machines Win 8+ and Mac OS 10.10+ as well as iOS 8+. But trying to connect from a 10.9 Mavericks Mac makes it weird... Here is my main....
0
votes
0answers
27 views

Make Postfix relay to a different host for sending email based on RECIPIENT domain

Is there a way to make postfix authenticate and relay on a different host for sending email TO a particular domain? The sender domain does not matter, I need postfix to relay to a different host if ...
0
votes
1answer
50 views

Postfix - restrict authenticated senders to their own e-mail address in MAIL FROM

How do I prevent my (authenticated) users from sending email messages with either incorrect or outright falsified email FROM addresses? My mail service is postfix and I have already set sender and ...
-1
votes
1answer
20 views

forwarding emails via postfix, smart routine to actively check that it works

I have a domain registered at namecheap and run my website on a digitalocean droplet. I have successfully set up email forwarding on the server with postfix, such that emails sent to name@example.com ...
0
votes
0answers
6 views

Postfix custom Error configuration [duplicate]

I am trying to find a way in Postfix where I can modify the error message Recipient address rejected: User unknown in virtual mailbox table I am creating a custom solution where this is going to ...
0
votes
2answers
36 views

Find out exactly what (which php script) is trying to send spam from server

Last night my server was compromised (I guess - one of outdated PHP CMS's) and many spam messages were sent. I have restricted access to Postfix (via authorized_submit_users directive in main.cf) ...
0
votes
0answers
37 views

How run script after spamc, use args in script and redirect spamc output to sendmail?

I'm trying to perform custom actions after spamassassin. I have working line in postfix master.cf spamassassin unix - n n - - pipe user=spamd argv=/usr/bin/spamc -e /usr/sbin/sendmail -oi -f ${sender}...
0
votes
1answer
44 views

Cannot send mail to postfix mail server

I've setup a postfix mail server, my domain points to my server as I'm already hosting the website. However I cannot send any mail to the mail server. I've added the email's such as casper@...
0
votes
0answers
19 views

How to get spamassassin working with postfix as a milter

I'm trying to get spamassassin working on Ubuntu 16.04 with postfix. When receiving mail, I get messages similar to the following in my logs: Jun 11 14:29:47 myhost postfix/smtpd[2387]: connect ...
0
votes
0answers
6 views

Postfix reject on Centos 5.11?

i like to config postfix to reject ALL incoming emails except one that is whitelisted what i was try: /etc/postfix/sender_access someone@somwhere.com OK foo@bar.org REJECT it is working , but i ...
0
votes
1answer
62 views

Postfix(admin), Dovecot, MySQL: Aliases not working

I'm able to send mail to the mailboxes i've setup with postfixadmin. This is working correctly and i can send and deliver mail on them. But now i'm in need of Aliases to work properly as well. I've ...
1
vote
0answers
56 views

CentOS mail bounced error dsn=5.1.0 status postfix issue

I'm running centOs on my server and i use postfix for sending emails but a while ago postfix has started bouncing every mail i try to send giving this error: Jun 9 12:06:49 IrideLamp1 postfix/pickup[...
0
votes
0answers
37 views

Occasional “could not execute mail delivery program /usr/sbin/sendmail”

I seem to be having an infrequent issue with PHP and sending email. Most of the time it works fine but occasionally the email doesn't get sent. Looking in the website logs I can see a bunch of these ...
0
votes
2answers
45 views

Postfix config, prevent server from blind relay

All, I'm having a bit of a weird issue. I have a legacy Postfix smtp server that just yesterday started acting as a relay for spam. From what I can tell, the issue is that whatever spam bot is doing ...
1
vote
1answer
40 views

Forcibly disconnect spammers

I have Postfix, Dovecot and Amavis on my Ubuntu server. Recently, I get every 4 minutes a connection from IP 155.133.82.96, which appears to be Windows XP and maybe has a virus. Anyway, I found the ...
1
vote
0answers
37 views

Postfix ignores my transport maps

I'm trying to pipe incoming email for helpdesk@example.org to a script called rt-mailgate, while sending the rest of my incoming emails (anything...@example.org) to Dovecot with ldap and spamassassin. ...
0
votes
1answer
47 views

courier-authlib: wrong username enters search query

I am trying to setup smtp authentication using courier, mysql on postfix. My passwords in my db are encrypted. When I attempt to connect, I get an auth failure r2d2 ~ # telnet mail.server.com 25 ...
0
votes
1answer
15 views

How can I enable Django to send emails?

I have a Debian server (Linux www 4.5.0-x86_64-linode65 #2 SMP Mon Mar 14 18:01:58 EDT 2016 x86_64 GNU/Linux), and postfix is installed. It is working at least far enough that if, from the command ...
0
votes
2answers
43 views

Blacklisted client: why did Postfix not reject this email?

Answer The best answer was on the postfix-users mailing list and it is summarized here for the benefit of serverfault's users. I had forgotten soft_bounce = yes. Always switch it back to no after ...
1
vote
0answers
9 views

Setup email for specific domain using EC2 and Route53 [closed]

I've set up postfix running on an EC2 instance with myhostname and mydomain changed appropriately. I've also made sure that my A and MX record are pointing to the EC2 instance. However, when I send ...
0
votes
0answers
26 views

Dovecot/Postfix mail server SASL: Connect to private/auth failed

Trying to get this mail sever up has eaten up a good chunk of 2 days and I've made some headway but this specific error has persisted throughout. I'm using a Debian server with Postfix + Dovecot + ...
0
votes
0answers
27 views

Inbound message relay using SparkPost

So I've got SparkPost, and they've enables inbound messages, which I want to use. I can get it to send inbound messages to a web socket (https://support.sparkpost.com/customer/portal/articles/2039614-...