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
987 views

SpamAssassin doesn't appear to be 'learning' from forwarded examples of spam

I have spamtrap@ and hamtrap@ addresses set up on my mail server and forward examples of spam to the spamtrap address. I was hoping that after a few examples, SpamAssassin would 'learn' to identify ...
0
votes
2answers
223 views

${extension} empty after catch-all alias in Postfix

I want a setup where an e-mailaddress like user+foo@example.com redirects mail to the folder foo. I've already got dovecot configured and tested. It is called by postfix with this line in master.cf: ...
1
vote
1answer
155 views

postfix error looking up passwd info (catch-all)

In postfix I'm trying to setup a catch-all address for unknown local accounts. Any mail that can be delivered to a local user should be delivered to their local mailbox (and respect any aliases in ...
2
votes
1answer
78 views

SASL PLAIN authenticating with primary domain, but not with virtual domain

Postfix + dovecot and sasl. Works so far with 1 domain. Added a virtual domain. Incoming mail for this works. Outgoing however has SASL authentication failing. Why does it fail I don't know. ...
7
votes
2answers
166 views

How widely supported is forced TLS on inbound SMTP connections?

I run an MTA consisting of the standard Postfix, SpamAssassin, ClamAV, SPF/DKIM checks etc. This MTA is used for inbound email only, doesn't host any accounts and forwards any mail that passes said ...
1
vote
1answer
47 views

Allowing Postfix Relaying For Certain Hosts [duplicate]

I have Postfix setup in a test environment, segregated from our LAN, and relaying for hosts in the test environment. Originally, I had all outbound email funneling through procmail and into a single ...
0
votes
0answers
17 views

Postix or Dovecot debug log for Maildir folder, Virtual user mail folder owner and permission

I'm no able to find a complete tutorial about Maildir and the folders where reside owner and permissions if there's any and you already found it , please share. Anyway I wonder if there is a way to ...
0
votes
1answer
4k views

Postfix rejecting to address

I'm trying to setup postfix on ubuntu. I only want to allow sending of email from local connections with no authentication. When I try to send emails I'm getting the following errors: 550 5.1.1 ...
4
votes
1answer
65 views

how do I set up two smtp ports for postfix?

A CentOS 7 server with postfix, dovecot, and mailx needs to accommodate mail being sent through port 465 and received through port 25. What specific syntax and files need to be changed in order to ...
2
votes
2answers
64 views

postfix relay based on origin

I have 4 servers. prod1.example.com, prod2.example.com, dev1.example.com, and dev2.example.com. They all send their mails to smtp.example.com. This server does the relay. Now I want that dev1 and dev2 ...
0
votes
2answers
76 views

email sending speed - how to improve

I am maintaining a server to send email mailings (no spam, of course). The current speed of this machine is approx. 2000 emails per hour. (edit: actually I did a test mailing today, removing the ...
0
votes
1answer
724 views

Postfix: Relay access denied through SASL with permit_sasl_authenticated setted

I have Postfix 2.7 installed in Ubuntu 10.04 LTS. When I try to send a mail from Outlook (with smtp auth) to a gmail account (or others), I get relay access denied. The log (I've faked the emails): ...
1
vote
2answers
2k views

Postfix - don't generate “unknown user” bounces if message is Spam

We receive a a lot of spam addressed to (random) non-existing users. This causes postfix to generate "unknown user" bounces to the fake sender. As a workaround I use a catch-all to redirect any mail ...
0
votes
1answer
42 views

Recomendations for this mail server setup?

EMAIL SERVER SETUP Hey, its my first time using serverfault but I hope the community can help. I am trying to build a secure email system using Linux, Postfix, Dovecot and MySQL. I have read on ...
0
votes
1answer
41 views

Understanding Postfix Mail Log

Recently I checked my mail log and found a lot of messages like this (some cipher text have been truncated): Feb 23 11:57:42 postfix/smtpd[32451]: initializing the server-side TLS engine Feb 23 ...
0
votes
2answers
451 views

postfix bounce configuration

What I have is: Windows server generating emails with own app and sending them to relay server (2) - this works fine Relay server that sends emails received from (1) - CentOS - working fine What I ...
1
vote
1answer
73 views

Increase timeout for Postfix/Cyrus “Command time limit exceeded”?

I have an old OS X Server 10.4.x running Postfix 2.1.5 which is configured to use cyrus as mailbox transport. Here's postconf -n: # postconf -n alias_maps = ...
1
vote
2answers
309 views

Postfix sends to original recipient name instead of alias name [on hold]

I have setup Postfix as part of my ISPConfig implementation. It should just forward all mail. Clients should be able to define a new alias and receive mail on a different e-mail address, using ...
0
votes
1answer
1k views

Postfix SMTP connection issue [on hold]

I'm having a problem with my postfix install. I can't seem to get it to open up on any of the SMTP ports. I always get a connection timeout. When I do a nmap scan it shows the IMAP/s and POP3/s ports ...
1
vote
1answer
537 views

Plesk 10 Postfix with multiple IP adresses and SSL certificates [on hold]

We are currently running a root server with Debian 6 and Plesk 10.4.4. We have some virtual hosts using one IP adress (shared) - e.g. example1.com - and another virtual host using a dedicated IP ...
1
vote
1answer
938 views

Setting up email addresses for different domains in ISPConfig [on hold]

After following this article I have set up a number of email addresses on my server. On another machine on my network, I have seven sites hosted (and configured correctly with Apache). I would like ...
1
vote
2answers
466 views

Postfix: Transport Maps via Third-Party Relay Host

I have my website and email hosted with a shared host. Unfortunately their servers are using CPanel, so they are limited in their spam protection options. I also have a VPS that I use for testing ...
-3
votes
0answers
31 views

spfpolicy permission denied error

Who should have spfpolicy file's permission? . I'm guessing is that matter since i have this error Mar 2 15:57:51 example postfix/smtpd[28162]: input attribute name: /usr/bin/python: can't open ...
0
votes
2answers
82 views

postfix mails (works) to all but my domain on debian

I have set up a redmine server that I got from turnkey linux. Mail more-or-less works out of the box. I can mail to anyone that is not in my domain. Let me explain: If I run the mail command from ...
-1
votes
1answer
1k views

How to block incoming login attempts to postfix, pop3, imap? [closed]

We are running CentOS 6.5 and have to send email but don't need to receive. I would like to block all incoming login attempts to postfix, pop3 and imap. I have found hints to iptables or fail2ban, but ...
-2
votes
0answers
11 views

Postfix: Different outgoing IPv6 for multiple domain setup

I am serving 3 domains on my linux VPS using Postfix MTA. I have 1 IPv4 and over 65k IPv6 adresses. Because you need correct reverse DNS to avoid the spam filters I want to force Postfix to use 3 ...
2
votes
1answer
135 views

Postfix to Postfix relaying

I've got a (possibly unusual) situation with using Postfix to relay mail to another Postfix mail server that then needs to send the email out. I've read plenty of tutorials and seen instructions for ...
2
votes
2answers
2k views

Postfix dynamic smtp_helo_name

I have a mail server that relays e-mails for two different domains. I want the smtp_helo_name to be different based on the domain. I'm assuming there is no way to do this via checking the mail ...
1
vote
1answer
29 views

If I create a virtual email alias that forwards a lot of spam email, is my IP at risk of blacklisting or the originating IP address? [duplicate]

A scenario of this would be something like a domain called domain.com has a mailserver set up that forwards all email sent to info@domain.com to person@gmail.com. If someone sends a lot of spam to ...
1
vote
2answers
3k views

Plesk Postfix SMTP 550 5.7.1 “Command rejected” for one external sender [on hold]

My server is rejecting emails from one external sender. I suspect this might be misconfiguration on the sending server, but I'm not sure from these error messages. The non-delivery report message the ...
0
votes
2answers
156 views

Forcing MAIL FROM envelope to use: authed-user@$mydomain

I'm desperately trying to get Postfix to 'rewrite' the MAIL FROM envelope so that it's always in the form of: authenticated-user@$mydomain I've been playing with the smtpd_sender_login_maps and ...
1
vote
2answers
475 views

Postfix: sender-dependent-relay and mail for host

I'd like to extend my configuration of postfix to be able to receive mail for my domian. Currently, I've set up postfix as a smarthost which accepts mail after authentication and forwards it, ...
0
votes
1answer
270 views

How to exempt localhost from SMTP smart relay?

I've got a mail server (mail.mydomain.com) that has a relay set up as such: /etc/postfix/main.cf: # Smarthost relayhost = [smtpcorp.com]:2525 smtp_sasl_password_maps = ...
1
vote
2answers
2k views

freebsd 8 mail log status, what do these mean?

I'm new at some of the server stuff and need a bit of help understanding what the /var/log/maillog file is saying. I've sent 200 emails for an email newsletter I'm running. In the "maillog" file I ...
0
votes
1answer
56 views

Postfix: delivering “local” mail to GMail, but sending other mail

I need to set up a server to send messages to a few different people automatically. The recipients are at two different domains, let's say mydomain.com and otherdomain.com. The messages need to come ...
1
vote
1answer
70 views

Postfix relay and store

So, I am setting up a backup mail server. I got it relaying messages (saving them to queue and then, as soon as primary's up, deliver them to primary). It took following two lines: relay_domains = ...
0
votes
2answers
668 views

Postfix - Mail for domain.com loops back to myself [on hold]

i know there are a few threads about this already but they don't seem to fix my problem. I've got a Ubuntu Server running Plesk11 with POSTFIX Server as email engine. My primary domain - lets call ...
0
votes
1answer
292 views

Plesk: Enable mail.domain.tld as Incoming/Outgoing Mail-Server [on hold]

I'm not quite sure, if it is possible to change the default mail-server aliases for Incoming/Outgoing mail on Plesk 10.4 ? By default, Plesk Panel uses imap.domain.tld / pop.domain.tld and ...
3
votes
3answers
579 views

“Relay access denied” when send email from another server

In 2008 I set up a simple mail server (running ubuntu 8.04 LTS) to allow local automation controllers to send email alarms without limits. I used to use gmx, but found that if an account had a ton of ...
1
vote
2answers
137 views

Selective “mynetworks” per domain on Postfix

My question is related with this: Dual delivery Google Apps and Postifx (server reject mail from my domain on google) Well, i've some servers with Ubuntu running an ISPconfig with Postfix. My ...
2
votes
1answer
713 views

Sending a large number of mails causing problems on CentOS 6 / Plesk 10 [closed]

I have a VPS running CentOS 6. When the system tries to send daily newsletter, after some time (e.g. after sending about 2000 emails), I get error "Unable to send mail" and the system memory goes ...
4
votes
1answer
42 views

Roundcube sends e-mails without subject

I have recently set up a mail server that consists of postfix and dovecot. Yesterday I added nginx and roundcube to the mix. SPF, DKIM, DMARC, rDNS records are all done. Gmail treats my mail as valid ...
-4
votes
0answers
48 views

Setting up High Performance SMTP to send 300,000 mails daily [closed]

I'm working on a project for a salesforce app for a 15 years old portal with a massive user base of around 3 Million subscribers and growing. The App sends our around 10,000 to 30,000 Transactional ...
-1
votes
3answers
2k views

Mail server: SASL authentication failure - Postfix + Dovecot + Mysql

I tried to set up my own mail server (postfix, dovecot, mysql, ) and I can connect via imaps/pop3s without any problems. But every time I try to connect to the SMTP server (e.g. with the Apple Mail ...
0
votes
1answer
56 views

Dovecot / Postfix / SASL: Connect to /var/run/dovecot/auth-client failed: Permission denied

Dovecot / Postfix configuration is not working properly on my server : after several checks, I understand that Imap services are operationnal using local or desktop clients Postfix is listening, ...
2
votes
3answers
991 views

Postfix: SASL authentication failure: cannot connect to saslauthd server: Permission denied

I had a Postfix/Dovecot server up and running for about a week until I had to reboot it. When I did, things stopped working. I've been up searching for hours to no avail. IMAP successfully ...
1
vote
2answers
835 views

Dovecot cannot authenticate through IMAP

I want to setup a mail server with postfix + postgresql and dovecot. At the moment i can send emails to the mail server but i cannot connect to it with my mail client because it says that the password ...
0
votes
0answers
16 views

Exchange with Postfix MX for technical accounts in same DOMAIN

I have organization configured with Exchange 2007 server with many technical accounts. I would like to migrate technical account to Postfix server with same domain At the moment my structure is: ...
2
votes
3answers
4k views

Postfix relay host connection fails: timed out while receiving initial server greeting

I have an Elastix server box that I want to send email notifications of voice mails from. I'd like to send them through our company email (hosted by shared web host provider Bluehost). I have followed ...
0
votes
2answers
227 views

Forwarding mail to different mail system in Postfix

I have an e-mail server powered by Postfix. Aside from traditional e-mail accounts on my server, I want to maintain some accounts whose only role is to forward all incoming mail to differnet address ...