0
votes
1answer
144 views

postfix failed to start CentOS 6.5

DISCLAIMER: I am new to CentOS, so please forgive me if I overlooked something simple. Here is my issue: I recently just reformatted my server to CentOS 6.5 x64 and I have been having issues getting ...
0
votes
1answer
95 views

Specifying a Postfix Instance to send outbound email

I have a CentOS 6.5 server running Postfix 2.6x (the default distribution) with five public IPv4 IPs bound to it. Each IP has DNS and rDNS set separately. Each uses a different hostname at a ...
0
votes
1answer
89 views

mail issues. cent os6, postfix and php mail. many domains, one with google apps

I am running a private server with centos6. I am using postfix. My "main" domain is using google apps to deliver its messages. I have several other websites hosted on this server too. The problem is ...
0
votes
1answer
131 views

Postfix Spamassassin deferred queue massive error

I have been witnessing some massive problems with my Postfix email server, equipped with Dovecot, and spamassassin. The log files show errors like below, and there are thousands of such lines in the ...
0
votes
1answer
59 views

Bounced mail reaches postfix but being removed by the queue manager

I have setup postfix and dovecot. Postfix is set to accept connections from my webserver to send out system generated mail. These are being sent out successfully. Sent out emails to some non-existent ...
1
vote
2answers
107 views

Bounced mails not reaching postfix

I have postfix and dovecot installed on a Centos 6.4 production (www.bw.co.uk) machine. The intent is to send all system and transactional messages and collect bounces. The email id's that resulted in ...
0
votes
0answers
221 views

centos 6.5 postfix postgresql support

i m trying to use postfix with postgres to create a virtual users mail boxes. I get the following errors : fatal: unsupported dictionary type: pgsql warning: process /usr/libexec/postfix/smtpd pid ...
2
votes
1answer
180 views

telnet unable to connect to remote host

I have installed postfix and devcot on one of my live servers to send bulk mail (system messages on sign-up, wrong passwords etc). I use the php_imap function to check bounces and flag those email ...
0
votes
0answers
52 views

How to disable blacklist checking and enable content preview in spamassassin 3.3.1

I want to disable all the blacklist check from spamassassin, once a new mail is received by mail server. Since the blacklist checking in makes the server load spikes to higher rate.Also please help me ...
0
votes
0answers
259 views

IP address is HELO'ing as “localhost.localdomain”

I've configured postfix SMTP server on Centos 6.4, But CBL blacklisted our IP for below reason This IP address is HELO'ing as "localhost.localdomain" which violates the relevant standards ...
0
votes
3answers
476 views

How do I setup Sendmail + Dovecot + Roundcube on CentOS6 [closed]

Pretty much what the title says. I've been digging all over the internet trying to figure this stuff out. I have a CentOS 6 box. I have Sendmail and Dovecot and Roundcube all installed. Roundcube ...
0
votes
0answers
20 views

centos rely access denied postfix send mail [duplicate]

I am trying to send mail from my centos using postfix configuration but getting error as 554 5.7.1 <dummy@gmail.com>: Relay access denied my postconf -n shows belog information ...
0
votes
2answers
112 views

MailX sending all mails to spam folder

I followed the setup as instructed in this link: https://www.digitalocean.com/community/articles/how-to-install-postfix-on-centos-6 I successfully installed everything and mail is being sent via ...
1
vote
1answer
170 views

I added some options to stop spam with Postfix, but now won't send email to remote domains

I had a working Postfix server, but added a few lines to my main.cf in a hope to block some common spam. Those lines I added were: smtpd_helo_required = yes smtpd_recipient_restrictions = ...
-1
votes
1answer
253 views

Howto enable SMPTS (465) postfix CentOS

I need help is enabling SMTPS. I use postfix , dovecot with MySQL(virtual domains). I do not know how to enable SMTPS(465). I already added tls related settings and key and certificate in the ...
0
votes
2answers
178 views

Relay access denied when not send from server itself

I'm setting up Postfix & Dovecot on CentOS 6. Everything works except sending mail from withing Outlook to someone else. Receiving works & sending from ssh console as well .. I've been ...
1
vote
1answer
36 views

Fail2ban still adding to log after uninstall

I am running a CentOS6 VM and I have been playing with Fail2ban, upon removing the service from my server I can see that it appears to be still posting logs to the /var/log/maillog Here is a link a ...
0
votes
1answer
94 views

When running postfix & dovecot, who should own /var/mail and what permissions should it have?

I had an issue where either postfix or dovecot did not have permission to create user directories in /var/mail. Doing ls -l '/var/mail' showed me that the owner and group was root root. 1 root root ...
0
votes
0answers
71 views

Relay access denied for virtual domains, but main domain working - why?

I had a working postfix - and something has changed and now nothing is being relayed from external emails. The errors reported in the log to be insufficient. e.g: Sep 23 11:32:52 srv ...
0
votes
1answer
42 views

Creating a new system user didn't create a folder in /var/mail for the user - why not?

I am using postfix with virtual domains. Normally I add a system user, and then add the email to /etc/postfix/virtual. For the latest user I added however, there was a problem, and in the maillog it ...
0
votes
1answer
51 views

I have setup mail.mydomain.org, but now for another virtual domain, i'd like mail.thatdomain.org as well - how?

I'm using postfix and a mail dns mail.mydomain.org But now I am adding another virtual domain and I would like a mail dns for that as well, e.g. mail.mydomain.org and mail.newdomain.org. I have ...
1
vote
1answer
124 views

My postfix is letting me send emails through it without a username password - how to disable?

My postfix is letting me send emails through it without authentication. It has been setup to allow authentication, but it also allows non authenticated sending which I'd like to stop. What config ...
0
votes
0answers
237 views

Postfix/SMTPD brute force attack - what is it doing?

For over 24 hours now, my CentOS6 server has been bombarded with the following connections. There are thousands of these log entries. I have set up Fail2ban and this has now banned over 10000 IPs and ...
-2
votes
1answer
42 views

CentOS Postfix Server Hanging on NULL Recipients

I have a CentOS server that runs postfix and whenever a null recipient is sent to it, the server freaks out. Instead of simply rejecting the mail, it doesn't know what to do with it and tries over and ...
0
votes
1answer
320 views

How to Isolate source of spam on Centos 6.3 Plesk 11 server

Been spammed and the header is showing: X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network X-No-Relay not in my network Received ...
0
votes
3answers
1k views

CentOS 6.4 [postfix+dovecot] Can send external mail but CANT receive

Im trying to set up a mail server with postfix, dovecot and roundcube/thunderbird on a centos 6.4 VPS where my weberver is hosted... I have this situation: I can send and receive internal mails ok. I ...
0
votes
1answer
331 views

User not recognised in Dovecot/Postfix and virtual domain (Virtualmin)

I have installed Postfix and Dovecot on my VPS running CentOS 6 x86. I am trying to make them work with the virtual domains set up using Virtualmin, but the user cannot login. When testing imap with ...
1
vote
3answers
2k views

Nagios email notification not working on CentOS

I have configured Nagios 3.4.4 on CentOS 6.3 Final. I have also configured Postfix with SMTP email server. I have verified from console that I am able to send email notifications and recieved them on ...
0
votes
1answer
195 views

( status=deferred :25: Connection timed out ) issue with Postfix

I have postfix installed on a Centos server with 1 main ip 1.1.1.1 and a range of ips 2.2.2.0/24 The problem is : i can only send mail with the main ip 1.1.1.1, when i change it to another one from ...
0
votes
2answers
113 views

Unable to get forwarding to work

I am unable to get forwarding to work. Here's my postconf output: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases command_directory = /usr/sbin config_directory = /etc/postfix ...
0
votes
2answers
350 views

Postfix email address change

Being new to Linux I have followed this tutorial to set up a mail server: https://www.digitalocean.com/community/articles/how-to-install-postfix-on-centos-6 Everything is working correctly however I ...
2
votes
1answer
2k views

Centos 6 Mail Server / Can't receive e-mails but can send

I recently set up my server using Centos 6, with ISPconfig 3 with httpd, php, mysql, mail server. I can create e-mail accounts in the control panel, And I successfully can log in to the webmail, I ...
0
votes
1answer
363 views

Using postfix in CentOS 6 to relay mails to First.Last@gmail.com

I'm using: # cat /etc/*release CentOS release 6.3 (Final) # rpm -qa | grep post postfix-2.6.6-2.2.el6_1.x86_64 on 2 servers: preferans.de and (yes, funny name) ...
0
votes
1answer
988 views

Can't receive emails using Postfix: Status=deferred (conversation with 127.0.0.1[127.0.0.1] timed out while receiving the initial server greeting)

I was setting up a server until about a month ago when I had to stop for personal reasons. I've went back to it today and tried to send/receive emails. Initially, I sent myself an email from my Gmail ...
1
vote
1answer
184 views

LAMP server domain can't send e-mail to Exchange server domain.. Different IP's but both on same network

So I have 2 different domains hosted on different servers. domain1.com is hosted on Windows: - DNS(MS) is 10.1.1.39 - WEB(MS) is 10.1.1.21 - Exchange(MS) is 10.1.1.180 domain2.com is hosted on ...
1
vote
1answer
1k views

Problems with mysql-libs *after* installing MariaDB

I have installed MariaDB 5.3.3 on a Centos 6 server. In order to do that, I had to issue this command before installing the MariaDB-server rpm: rpm -e --nodeps mysql-libs And now mariadb and all ...
0
votes
1answer
1k views

Postfix issue with relay access denied - I HAVE READ ALL similar cases and tried almost everything

this is first time I set up a server from scratch and I consider myself a fast and good learner for new stuff, so I did my best to setup postfix with dovecot in CENTOS 6, so I'm getting relay access ...
0
votes
2answers
653 views

SMTP server rejects connection without SSL enabled

Setting up a new CentOS 6 server with Plesk 10.4.4 using Postfix, I am unable to send emails from any user account on port 25, 465, or 587 without having SSL enabled. If I check to use SSL in Apple ...
1
vote
3answers
6k views

Changing the maximum mail size in Postfix

When sending large email to a new CentOS6 server running Postfix as the MTA, the following message is returned: tried to deliver your message, but it was rejected by the recipient domain. We ...
0
votes
2answers
3k views

CentOS6 - How to install Postfix with MySQL support from “centosplus repository”?

I need to install Postfix with MySQL support from the CentOSPlus repository. I have done what this document/tutorial describes: ...