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
votes
1answer
23 views

Change MX record to another server

I have a host-machine with Centos 7 and a guest machine with Centos 6.6. I want my guest to be a mail server on dedicated static ip for all my domains (on the same host-ip and not). P.S. I use ...
1
vote
2answers
24 views

Postfix seems to send spam

I recently discovered this in my postfix-log: Aug 4 11:09:12 mail postfix/smtpd[71597]: connect from unknown[59.88.35.206] Aug 4 11:09:14 mail postfix/smtpd[71597]: Anonymous TLS connection ...
2
votes
0answers
20 views

Postfix/Dovecot - Multiple Domains and Multiple Linux Accounts

I have been trying to setup a new mail server to migrate from my VPS, as my host has decided to close its doors. The old server was running Exim/Courier (nearly a decade old at this point,) and I'm ...
-2
votes
0answers
14 views

Postfix Mail problems with new vps [on hold]

i have some problems with my new vps, i use virtualmin as a panel, few days a go i get a new vps, but still got old one. On my old vps i get cpanel as a panel and i got some mails addresses, the ...
-1
votes
1answer
21 views

Postfix Send many messages in one connection

i have a question about postfix. We cand send to our providers smarthost 4000 Mails per Hour. When we send this messages, we got the failure too many connections back. Now i want to send all theese ...
0
votes
0answers
23 views

postfix Client host rejected: Access denied; NOQUEUE: reject: RCPT [on hold]

I am having some issues with postfix not accepting any incoming email. I was having another issue and manged to resolve it thanks to help from here but I think i have messed some other setting up or ...
0
votes
1answer
13 views

Postfix ignoring relay_recipient_maps?

I am trying to setup a mail relay running Postfix in the DMZ to forward all incoming mail to the internal LAN connected mail server. I would like to be able to refuse incoming mail for non-existent ...
-1
votes
0answers
20 views

setup postfix SMTP on amazon ec2

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 ...
0
votes
2answers
15 views

Postfix multiple IPs: which to use for SMTP AUTH?

I am setting up a mail server which has separate IP addresses for sending and receiving mail. My config looks like this: # The addresses we send out on: smtp_bind_address = 185.xx.xx.101 ...
-2
votes
0answers
18 views

Ubuntu server 12.04 - postfix, dovecot, mysql,… set auto responder message in mysql [on hold]

I search the best solution for auto responder(vacation). If possible to store the vacation message in a mysql database... With a start/end date. Or else... if i can do it with text file. What ...
2
votes
1answer
79 views

postfix loopback email and exchange issues

I have plesk setup on a server with multiple domains already living and breathing, including email which all works fine. My issue comes in with a new domain I added that is using exchange for the ...
-2
votes
0answers
18 views

Alter all outgoing email to add return-path to it (Qmail or Postfix)

Is there a way (config option or program, script, etc) that can filter all outgoing email in order to add a return-path to each message sent from that server ? I would need it for eider Qmail or ...
0
votes
0answers
12 views

Dovecot - Fatal: execv(/usr/lib/dovecot/imap-login) failed: Permission denied

I'm in the process of trying to set my own mail server reasonably closely following this guide: http://sealedabstract.com/code/nsa-proof-your-e-mail-in-2-hours/ I've just started to test the ...
0
votes
0answers
11 views

Sendmail and Postfix: Email Masquerading Issues

I'm trying to do email masquerading but it isn't working. Would having these entry prevent the email server from masquerading emails? # On our Sendmail server define(`SMART_HOST', ...
0
votes
0answers
14 views

IPSConfig - simple username for an email account [closed]

I'm using ISPConfig for my private web and email vServer. The email accounts use as username the entire email address like user@example.com. Now i would like to use gmail-like plus-addressing / ...
1
vote
0answers
36 views

Postfix hard bounced emails are not rejected

I have configured Postfix to send and receive emails, but there is an issue with HARD bounced emails - they are not rejected and Postfix repeats sending them every x minutes and user receives ...
-1
votes
0answers
13 views

umask 002 opendkim illegal value

When I try to start opendkim I receive the following error: Starting OpenDKIM: opendkim: /etc/opendkim.conf: configuration error at line 3: illegal value opendkim. In line 3 I have the umask ...
-1
votes
0answers
19 views

Multiple regex statements to match [on hold]

How can I manage email headers to reject all emails from specific email domain with specific filetypes? For example. If @gmail.com and filetype is .exe then reject. if /name=.*.exe/ if ...
1
vote
3answers
44 views

Migrate VPS to Same Machine Without Losing Emails

I have a centos 6 VPS running ispconfig that isn't in good shape at the moment. Yum is broken beyond repair and it looks like my best option for fixing is a reinstall. I'm planning to backup, install ...
-1
votes
1answer
23 views

Postfix to Dovecot connection was interupted, where did Postfix store my email?

I upgraded my postfix and dovecot mail server, turns out I forgot to configure delivery from postfix to dovecot. Postfix instead delivered the email itself(according to the logs as it's says ...
3
votes
2answers
60 views

Postfix virtual domain mapping for a Linux username containing @

I could not make Postfix work with Linux usernames containing @ Postfix has virtual domain map, in /etc/postfix/virtual It looks something like this: domain.ru domain.ru ...
1
vote
1answer
25 views

Postfix sender acces restriction - Security breach?

We encounter security problems with our mail server and would like some advice. The story behind it On our mail server (Postfix 2.9.6 + Dovecot 2.1.7) we would like to be able to create restricted ...
-3
votes
0answers
14 views

How to change the hostname of postfix and still have all emails show up in IMAP? [on hold]

I recently had to manually restore a server after a bad crash. I recreated the mailaccounts with Plesk and copied the mailboxes with all the emails back into their original location. I had to do the ...
2
votes
2answers
55 views

Spam mail forwarded through my server using valid user

I am getting "Undelivered Mail Returned to Sender" messages. The relevant mail messages are being forwarded using a valid user (mike@proactech.com) on my server (server1.nbicharts.com). I control ...
1
vote
2answers
20 views

Postfix omits realm (@domain) when checking for smtpd pam+mysql authentication

I've trying to configure Postfix so users can send email through SMTP having a username and password. And I'm trying to store credential within a MySQL database. I've taken the path of saslauthd and ...
-1
votes
1answer
26 views

Spam sent from my domain after a Wordpress exploit [duplicate]

I have 2 domains on my dedicated server running debian. One of them is linked to a wordpress site, mydomain.com. I've noticed that on both my sites, lately, the performances were horrible so I ...
0
votes
1answer
30 views

Logwatch postfix report. Where does this “Deferrals” come from and how to stop it?

I'm using logwatch to monitor the logs on my server and I'm trying to make sense out of the postfix report. (See the report below.) By looking at /var/log/mail.log I saw that this mail seems to be ...
0
votes
0answers
41 views

Postfix Clogging Up

I have an OS X mail server running using server.app. In the background, it runs Postfix. Recently, my mail queue has been clogging up and I'm not quite sure why. I'll try to force the queue with sudo ...
-3
votes
1answer
49 views

Multiple email domains on the same server [closed]

I use Postfix/Dovecot for my emails. They work together well. Now I have a server with multiple IP addresses, and I want to host each IP address with a domain for mails. But it seems Postfix and ...
0
votes
0answers
21 views

mailjet with brimir (open source Ruby project) on debian doesn't send mail

I tired of searching a tip to be able to send mails with mailjet on my debian. I configured a dashboard for tickets (Brimir, Ruby open source plateform) Here is the link : ...
1
vote
1answer
21 views

postfix multiple alias with response (from alias mail)

I have a postfix - dovecot mail server installed over a Ubuntu 14.04 VPS. Is the following situation possible? I have tried using alias, but when i try to reply the mail, this one is delivered from ...
0
votes
2answers
30 views

google compute enging postfix relay through gmail

I would like to send directly through gmail, since we have google apps and use gmail as our domain email. I would like to get rid of sendgrid so I can possibly not be marked as spam. I found this ...
-1
votes
0answers
30 views

Debian Jessie - Postfix: “refused to talk to me: 421 Downstream server timeout” in syslog

I was reviewing my syslog and I see a lot of logs similar to this Jul 20 10:24:16 bunsen postfix/qmgr[1240]: 16F351C375: from=<>, size=3624, nrcpt=1 (queue active) Jul 20 10:24:16 bunsen ...
0
votes
2answers
43 views

smtp blues - external emails works, internal does not

I have 3 domains hosted on a remote server, but I am using other postfix server for SMTP only. So, I have two servers: mail.domain1.com - remote mail server, storing mailboxes and used for IMAP ...
-2
votes
0answers
23 views

iRedMail/Postfix/Dovecot/Ubuntu - I can receive, reply to emails, but i can not send

I am using Ubuntu 14.04 and on fresh linux installation i have installed iRedMail. As you know it comes with Roundcube and IredAdmin. I have created several emails with different domain all of them ...
-1
votes
2answers
32 views

Mail Server for a subdomain on a different Server?

I'm currently assigned the administration of a server that is accessed through a subdomain of another (not administrating example.com but y.example.com), and assigned to implement a web application on ...
-1
votes
1answer
62 views

Postfix + Dovecot fatal: no SASL authentication mechanisms

When I try to login via telnet I am getting kicked out immediately: telnet localhost 25 Trying ::1... Connected to localhost.localdomain. Escape character is '^]'. Connection closed by foreign host. ...
-2
votes
0answers
8 views

How to copy a message on mailq

How to copy a message in mailq to another account? I can read the message, but it is html code and I see it on text. If I send a copy to my mailbox I could see the context.
1
vote
2answers
38 views

postfix authenticate disable smtp port 25, but 587

I am trying to make postfix not to auth users on port 25 but only on 587 and using STARTTLS. I have tried may different confs, but no success so far. main.cf: ... smtpd_sasl_auth_enable ...
2
votes
1answer
50 views

Only enable SRS when forwarding to enable DMARC

I am setting up a mail server on my VPS and in order to prevent spam and being marked as spam I have enabled SPF, DKIM and DMARC. However, I do not want to host my own mailbox, so I forward the ...
-2
votes
0answers
47 views

Postfix / Dovecot not allowing external connections

I configured Dovecot and Postfix following https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin However, I am unable to connect ...
-1
votes
1answer
50 views

Dovecot-core fails to start

I am attempting to follow this tutorial: https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin I believe someone before me ...
-1
votes
0answers
19 views

Postfix Relay address rewrite based on X headers

My situation is unusual I receive emails from an unique address and need to relay them via multiple smtp mailboxes. The way the emails are differentiated is via a custom x-header. I have tried using ...
-2
votes
0answers
34 views

Postfix with spamassassin - fatal: pipe_command: execvp /home/ec2-user/script Permission denied

I'm trying to add spamassanssin filter with postfix but its giving me permission denied error. I'm following this article: http://www.akadia.com/services/postfix_spamassassin.html I already given ...
0
votes
3answers
42 views

postfix or sendmail monitoring [closed]

I’m interested in alerting a support team in email when mail is backing up and not being relayed as expected, ie sending is delayed. I tried in nagios, there isn't any solution. I tried with logwatch, ...
2
votes
1answer
38 views

Postfix - rate limit outgoing concurrent connections to one machine/ip

I need to limit postfix outgoing connections for specific mailservers, but it seems to me that posfix's limiting is based on domains? What if there is one mailserver for more domains? I tried to find ...
1
vote
1answer
34 views

postfix SMTP outgoing gateway server, Software RAID1 vs RAID1 + RAID 0 on 2 disks

I have this old smtp server that is currently running Windows 2003 and with EOL I want to move it to something that will continue to get security upgrades but at same time I want to improve ...
0
votes
1answer
46 views

Use LDAP and Local auth as a backup on mail server

We are currently researching the best way to go about switching our mail server (dovecot/postfix/debian 7) from local authentication to ldap (AD) authentication. We would like to have local auth as ...
0
votes
1answer
86 views

Debian 8 Jessie - Postfix + Dovecot, send but not receive mails

I'm setting up a mail server (with Postfix, Dovecot and Postfixadmin) for a non-profit organization that I'm currently building. I'm able to send but not receive mails over TLS. When sending an email ...
-1
votes
1answer
32 views

Transfer existing email to new postfix/dovecot server via POP3

I have to build a new email server with dovecot/postfix on CentOS because an existing supplier is becoming too erratic with their billing. I can do that but I am worried for a small problem. If I ...