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
0answers
2 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 man other ones on configuring ...
0
votes
1answer
8 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
13 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 ...
1
vote
0answers
55 views

postfix loopback email and exchange issues

I am fairly new to plesk and postfix so please bear with me. I have plesk setup on a server with multiple domains already living and breathing, including email which all works fine. My issue comes in ...
-2
votes
0answers
8 views

Altel 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 ...
-1
votes
0answers
12 views

Block email Id to a specific user from postfix

Can we block a particular email ID for only specific user ? eg abc@mydomain.com can able to send mail to every one except xyz@mydomain.com I checked with check_sender_access but we can not block ...
0
votes
0answers
7 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
9 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 [on hold]

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
35 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 ...
0
votes
0answers
10 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
37 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
21 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
55 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
22 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
51 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
19 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
28 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 ...
-5
votes
0answers
31 views

postfix can sent mail but donot received with aws [closed]

environment: i am using aws . and install sentora hosting panel , and the also option for email .they are using postfix with round-qube in front-end . my Problem : i am creating email account ...
0
votes
0answers
37 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
19 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
votes
1answer
33 views

Centos 7 postfix send mail only — what firewall settings? [closed]

I'm trying to set up a postfix mail server on a local machine behind a Sonicwall. I already have gmail account for normal use @domainname.com but this postfix server is mainly for sending mails from ...
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
29 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
42 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
21 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
31 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
57 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
36 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
48 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
46 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
48 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
31 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
41 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
34 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
42 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
81 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
31 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 ...
-1
votes
1answer
39 views

Multi-IP address machine make postfix HELO name match the reverse DNS of the source IP that is bound to

On a Centos 6.6 server we have typically 3-4 Failover IP's that we distribute among our domains. In this way postfix, when sending outgoing email, binds to the IP linked for the domain separtating ...
-2
votes
0answers
21 views

How do I prevent domain-name spoofing? [duplicate]

I have two domain names, example1.com and example2.com. I also have two users: user1 and user2. I'd like it to be possible for each user to send from USERNAME@one_of_my_domains, but nothing else. ...
4
votes
1answer
84 views

DKIM not signing with alias addresses - not internal, not authenticated

I have postfix, dovecot, opendkim and postsrsd installed. I am trying to forward mail from alias@example.com to myemail@gmail.com, and have them signed with DKIM. I use postsrsd in order for the SPF ...
1
vote
0answers
21 views

Postfix SMTP authentication FROM [duplicate]

I have a Postfix server with authentication running. However I recently found out, that anyone authenticated may send mail from any account. Meaning user1 is logging in and may send the e-mail from ...