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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2
votes
2answers
70 views

Postfix SMTP server: errors from

I'm running the Postfix mail server ru000397.widhost.net. I'm getting some of these messages in postmaster@ru000397.widhost.net. The mail service is working and, obviously, there is much free space ...
0
votes
1answer
66 views

SMTP: Setup TWO servers to receive / store emails the same at the same time

My question aims to clarify whether I can get a setup running, where Server A on 1 site receives email as is received at the same time by Server B on site two. The requirement is to have Server B be ...
0
votes
1answer
54 views

Postfix Login failed, please check the username and password

So I have followed this guide to set up Postfix with multiple domains/IPs http://unix.stackexchange.com/a/179175/102085 However now I am trying to send emails I get the following error Login failed, ...
1
vote
1answer
83 views

Spamassassin rule to compare return-path and from fields

Recently I noticed a recurring pattern in some of the spams I get. The return-path and from headers always have the same structure. Let me explain with an example: Return-path: ...
0
votes
1answer
33 views

Postfix dynamically set Relay Host [duplicate]

Does anyone know of a way to dynamically set the relay host when sending mail through Postfix? At what point does Postfix set the relay host? Is there some way that I can tell Postfix to use a relay ...
0
votes
0answers
39 views

Covert Old Dovecot Configuration to New Format

I am trying to setup a very simple mail server with virtual domains with Postfix and Dovecot. I was following this steps to setup the postfix and first part it worked fine. ...
-2
votes
2answers
56 views

Just-installed Postfix + Dovecot on Debian 7 Sends but not Receives

After changing the Postfix default port from 25 to 26 (MySQL uses port 25), I can now send out mail from my box. But I can't get mail in. My mail.log shows the sent mail making it out just fine, but ...
1
vote
1answer
76 views

Outbound port 25 connections timing out all of a sudden: Centos 6.6 & postfix; hacked?

I have been running a Centos email/web server for years, with a Linode Xen server the last 4 years with almost no trouble. Since sometime yesterday I have not been able to connect to outbound email ...
0
votes
1answer
45 views

CentOS6.6 + Postfixadmin 2.3rc5 + PHP5.3, upgrade to PHP5.4

We're running PHP5.3.8 on a CentOS6.6 mailserver with Postfixadmin 2.3rc5. The client only wanted a mailserver at first, but then wanted to move some other sites to this server. Some of the sites need ...
-2
votes
1answer
53 views

postfix what is this, check_policy_service inet:127.0.0.1

When I got a 451 4.3.5 Server configuration problem, I was informed to delete these settings from postfix configuration: check_policy_service inet:127.0.0.1:7777, check_policy_service ...
2
votes
1answer
46 views

How to stop a loop I have introduced in a transitional postfix-spamassassin-dovecot setup

I am at the early stages of the steep email handling learning curve, gentleness appreciated :-). I have a setup with postfix and dovecot. I am trying to migrate my email server (domain example.com) ...
1
vote
1answer
48 views

What is the best way to harden a postfix null client on an exploited php webserver?

We use postfix as a null client to send out mail from a php webserver via sendmail. We host our incoming mail servers elsewhere and use a SPF record to authorise the server to send emails from our ...
0
votes
1answer
39 views

What is a saslpasswd2 domain?

What does saslpasswd2 do, in particular, what is the domain option for: -u domain use domain for user domain (realm). UPDATE: Suppose, I: smtp login to smtp.mydomain.com, as ...
0
votes
1answer
63 views

What FQDN should I use for Postfix setup in Satellite Mode on Ubuntu VM on VirtualBox?

I am getting lost with trying to configure Postfix on a Ubuntu 14.04 VM running on VirtualBox. The VirtualBox has 2 NICs: 1)NAT and is Internet access through my computer running the VM and ...
2
votes
1answer
30 views

How to make Postfix skipping some recipient's hosts as unreachable?

I would be really happy to learn how to make Postfix to "remember" that certain host is unreachable at the moment, so it would be good if we didn't perform any new connection attempts to this host for ...
0
votes
1answer
68 views

Postfix completely ignores relayhost setting in main.cf

I am having trouble sending email to my relay host. All mail is being directly delivered. postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff ...
0
votes
1answer
59 views

Postfix virtual domains: how to send emails to local or not destination with the corresponding virtual domain of every virtual recipient?

I need help to configure a postfix in a server as recipient and sender for many virtual domains and sub-domains. I want every email sent from any local recipient of this server reaches its destination ...
1
vote
1answer
20 views

match local recipients in virtual_alias_maps

I want to redirect all local mail by specifying an address in virtual_alias_maps file. It is possible to match recipients with regexp, but it's too complex. They can be: no domain (root etc.) ...
-3
votes
2answers
23 views

postfix not respecting aliases [closed]

I have a small server that is suposed configured to use my gmail account to send emails about the readings the borad takes I can send emails all right but I have noticed something strange - I ...
1
vote
1answer
63 views

postfix logs show dodgy connections

I have regular connections from an IP that appears in OpenBL list and I would like to understand what it does. If it failed at authentication phase, I would get auth errors (and he would be banned by ...
1
vote
1answer
52 views

Explain user@domain format of postfix $virtual_mailbox_maps parameter value

I am trying to setup a mail server using this article. Basically using postfix & dovecot. I have a test setup which works, but I don't understand some (a lot) of stuff and am trying to rectify ...
2
votes
1answer
22 views

postfix alias maildir delivering to ~user/Maildir/ instead of ~user/Maildir/alias/

My environment: # cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.6 (Santiago) # rpm -q postfix postfix-2.6.6-6.el6_5.i686 # I switched home_mailbox from Mailbox to Maildir/: # ...
0
votes
0answers
40 views

gpg-mailgate removes content of e-mails

I have installed gpg-mailgate from this repository on my server as stated in the INSTALL file. It does seem to work, partially. As it would be expected, when sending an e-mail to an account on my ...
-2
votes
1answer
34 views

Another private/auth not found thread in postfix-dovecot combo

If I try to send mails through my relay I get: warning: SASL: Connect to private/auth_dovecot failed: No such file or directory fatal: no SASL authentication mechanisms The auth part in main.cf: ...
0
votes
1answer
24 views

Postfix virtual_mailbox_maps mysql lookup on 2 different DBs

I'm trying to configure a postfix server to receive email for 2 different domains (no problem so far). But the users/mailboxes for both domains need to be looked up in 2 different tables on 2 ...
3
votes
1answer
40 views

Acces Denied when implementing policies in (postfix + policyd2)

I'm trying to use postfix + policyd2 to limit amount of outgoing emails. But when implementing policyd2 policies i get Access denied - no mater what i do i get denied. Postfix version 2.11.4 ...
1
vote
1answer
71 views

Postfix: 'Relay access denied' - all incoming mail is rejected

I am testing my PostFix setup by sending email from my gmail account to an account on a virtual domain. Postfix's response is invariably: NOQUEUE: reject: RCPT from ...
-1
votes
4answers
132 views

Why are many mail servers using subdomains like mail.example.com?

I'm just setting up dovecat and postfix for the first time and wondering why so many companies are using subdomains for IMAP and SMTP like smtp.mail.example.com and imap.mail.example.com? What are ...
0
votes
0answers
29 views

Updated hostname of server but old hostname still appearing appearing in Postfix logs?

Been having some trouble with emails bouncing when being sent to certain addresses from our CentOS 6.4 Media Temple DV server. I am no expert but after checking the mail logs it appeared that they ...
-2
votes
1answer
17 views

TLS for outgoing mail (following ISPmail) not working

I built my mailserver on a vserver after the ISPmail tutorial (https://workaround.org/ispmail/wheezy) (which is awesome). The only remaining problem is that it does not seem to use TLS with outgoing ...
0
votes
1answer
26 views

Postfix not receiving mail for virtual domain from outside (only locally)

I have postfix mail server running at mail.123.com (ip eg 1.1.1.1), then I have site books.com (ip eg 2.2.2.2) and it's DNS records like this: MX record as mail.123.com A record mail.books.com same ...
0
votes
2answers
34 views

Postfix forwarding all email regardless of restrictions

I'm trying to set up Postfix to relay mail only if it's coming from localhost, AND only if it's going to a certain domain. However, as soon as I've specified a relay server, everything (except local ...
1
vote
2answers
64 views

How to verify if my postfix uses really TLS to send outgoing mails?

I successfully installed Postfix on my VPS. I would like to send encrypted email. I installed all certificates and private keys and set my conf file: smtpd_tls_key_file = <path to my private ...
1
vote
1answer
66 views

Postfix behind a relay to handle incoming and outgoing mail with /etc/aliases

I'm trying to setup postfix on a Linux machine (Debian 8 with Postfix 2.11). But I have some troubles getting /etc/aliases to work correctly. The setup is as follows: A MS Exchange server is the ...
-2
votes
1answer
100 views

Postfix setup for LAN only [closed]

I have Ubuntu on which I installed Postfix. Postfix packet is up and running. I'm trying to make a simple e-mail system to work between a few LAN computers. Basically, I need to have some outlook ...
1
vote
0answers
189 views

Mail marked as spam (Gmail/Hotmail): IP not on blacklist, DKIM Valid, SPF Valid and DMARC valid

I'm trying to send mail from my own domain (which is 15 days old now) but I'm having some troubles. Check the following mail body: Delivered-To: ------@gmail.com Received: by 10.25.89.200 with SMTP ...
1
vote
1answer
69 views

Mails not being received. status=deferred (lost connection with 127.0.0.1

I have a MiaB box with about 30 email boxes. This errror pops up in /var/log/mail.err but with no other information. WARNING! Error in process_request eval block: /usr/sbin/spampd: write error ...
0
votes
1answer
17 views

Postfix - Allow authenticated connections on encrypted connection only

I currently have Postfix setup to deliver mail to local users without authenticating (to receive incoming email from other SMTP servers for my local users), and with SASL so my users can authenticate ...
1
vote
1answer
47 views

Dovecot reports no SASL authentication mechanisms

On my way to setup a mail server with Postfix and Dovecot on Ubuntu, I can now send mails to other domains. However, I cannot receive from others. In the logs it reads Jun 14 09:34:35 ...
-2
votes
2answers
92 views

postfix fatal: specify a password table via the `smtp_sasl_password_maps' configuration parameter

I'm using webmin and postfix to send emails, and I can't send emails, I checked the logs in the file: /var/log/maillog anf found the following error: fatal: specify a password table via the ...
0
votes
1answer
27 views

postfix not routing mail to remote hosts

I'm trying to setup postfix to be able to send/receive mail, I'm able to receive messages, but when I send to any other domain other than my domain name which is setup in postfix, I get the following ...
0
votes
1answer
20 views

Mailman not integrating with postfix properly

I installed postfix on my local machine and able to send mails to local users i.e. shivams in my case which is username of the account. Also i am able to send mail outside of my machine for ex. ...
3
votes
1answer
40 views

Postfix how to use policy service together with proxy filter

Using postfix 2.9 on debian I have configured before-queue proxy filter for scanning of spam and viruses smtpd_proxy_filter=127.0.0.1:27. I am using proxy filter and not content filter, so that I can ...
-4
votes
2answers
18 views

postfix not relying mail from remote hosts

I have the following postfix configuration: smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated myhostname = d*****.net alias_maps = hash:/etc/aliases alias_database = ...
2
votes
1answer
55 views

Postfix: Set custom SMTP Banner based on address used to access server

The Postfix parameter smtpd_banner sets the text of a server's SMTP greeting banner. The default setting is: smtpd_banner = $myhostname ESMTP $mail_name My mail server has several unique IP ...
1
vote
1answer
40 views

Outbound emails not being signed with DKIM using Postfix on Centos

I have been using phpmailer for my emails and i had dkim working correctly with this. I have a key mail._domainkey.domain.com. I have validated my past emails with http://www.mail-tester.com/ and i ...
0
votes
1answer
67 views

What directory permissions does Postfix require to copy mail into a users maildir folder?

I have postfix setup and running. Everything seems good other than the directory permission errors. In the past i accidentally ran chown -R apache / which as you can imagine broke a crazy amount of ...
1
vote
0answers
144 views

Unable to send email via Postfix SMTP via Mac Mail App

I installed a SMTP server with Postfix as mail agent (on Ubuntu 12.04). Config is as follow: $ postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no ...
0
votes
0answers
108 views

Mail spam error while sending mails using Gmail id via Postfix hosted on Amazon EC2 server

This issue is related to using my own SMTP server to send email by any user mail id like some other mail APIs do e.g; Amazon SES, MailChimp. I am using Postfix as a mail server for my applications. I ...
0
votes
1answer
46 views

How to monitor the postfix mail queue using monit?

Is there a way to monitor the postfix mail queue using monit? the available scripts just check, up/down/memory or CPU. I would like notices when the queue starts filling up. it would be nice to be ...