Free and open source mail transfer agent (MTA) that routes and delivers email

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1k views

Outlook 2011 (Mac) refuses to send email, error -17092. All other clients work [Solved]

Having spent a while debugging this, I thought I'd post here so others can save some time. The error from Outlook 2011 is: "The SMTP server does not recognize any of the authentication methods ...
3
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0answers
121 views

Spamassassin: store bayes per user in mysql (with amavis)

I use postfix (mysql virtual users) + amavis + spamassassin and configured spamassassin to use mysql for storing the bayes data: use_bayes 1 bayes_auto_learn 1 ...
3
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635 views

Postfix sasl relay host - weird behaviour

Previously I had a relayhost set in postfix to mailhost.zen.co.uk - I don't think it accepts SASL - only TLS. So I though I would try changing to a different relay host. However, the following log ...
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0answers
74 views

How to stop double-bounce FROM sender in postfix

I am getting huge amount of these in my mail log, and unable to find its originator. What could be the reason? Here is log entry: postfix/cleanup[9626]: 4413082E40: ...
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0answers
36 views

Is it possible to hold rejected messages in a queue?

I have a custom Postgresql backend for my virtual tables in Postfix, but there are times when a user's email isn't correctly configured and is responded to with a User unknown in virtual alias table ...
2
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68 views

Mail Service requires reboot every few days

I'm kind of new to postfix so am hoping someone can point me up the obvious here I have a Postfix working as SMTP server and everything is fine for a few days. Then without warning or apparent reason ...
2
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0answers
378 views

Postfix server begins send spam immediately after starting

I've installed a postfix server on a debian os & also I've installed apache 2.0 with php on same machine Several days ago my server begun to send a lot of spam messages via postfix. I understood ...
2
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0answers
898 views

MailScanner stuck in endless loop

I'm trying to install MailScanner and it seems to be stuck in a infinite loop. It scans the same messages and when it's done, it doesn't requeue them into postfix: May 3 14:58:13 marine ...
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260 views

Postfix removing domain from user names before passing to Dovecot for IMAP authentication

In IMAP authentication with Dovecot, Postfix is stripping the domain name from virtual users who share a name with a local user, causing them to fail authentication. Virtual users without local ...
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63 views

Permission denied in Postfix's smtp authentication

I am trying to install a SMTP server on my personal machine (ubuntu server). I've been reading up on a lot of documentation and decided to try my hand at Postfix using sasldb2 for authentication. The ...
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35 views

Login to SquirrelMail as a virtual user

I am on CentOS 6 with Postfix, Dovecot, and PostfixAdmin. I have configured an external domain with the user me@domain.com as a virtual user. It's receiving mail without a problem at ...
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44 views

Postfix: Reject forged sender/from address

currently, i find myself in the situation where once Postfix 2.11 has been configured to properly reject outbound forged emails addresses when sender login mismatches and also when sender address does ...
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24 views

Postfix configuration with DKIM to send mail from multiple domains

My current setup is a Postfix installation configured with DKIM on a server with hostname prod01.example.com The server is used to send out mail on the form webshop@example.com, ...
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27 views

Where do I add DKIM details to amavisd.conf on Ubuntu?

I'm trying to add a DKIM key to an additional domain on my Ubuntu mail server, I am trying to add the following block of code to the amavisd.conf file $enable_dkim_verification = 1; ...
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28 views

Postfix transport relay based on result of MX lookup

You can tell postfix to relay all mails for *@gmail.com via your account on smtp.google.com using transport maps: # /etc/postfix/transport gmail.com smtp:[smtp.gmail.com]:587 . # ...
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20 views

Postfix master issue

Today i noticed the following in my postfix logs: I got this in logs: Mar 6 13:36:16 my_server_name postfix/smtpd[23482]: connect from <other_server_IP> Mar 6 13:36:16 my_server_name ...
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27 views

How to avoid 554 error duplicate header

I set up IRedMail on an AWS server, so the mail stack looks something like this: Postfix Dovecot Roundcube Mail sent through Amazon SES I'm trying to forward emails to Gmail using the Managesieve ...
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44 views

Postfix performance and how to increase my throughput?

What I've read so far: Postfix Tunning Postfix Bottle Neck Analisys The Book of Postfix (chapter 22) I have similar specs to this guy but I'm only able to send about ~1300 emails/hour What I've ...
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24 views

How to configure Postfix to only send out emails with a certain header?

I'm setting up a local development VM and I was able to redirect all sent out emails to a local mailbox using virtual_alias_maps with the entry /.*/ username. What I'd like to add is an option to not ...
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42 views

Missing Client IP in postfix Received header

I just noticed my postfix setup has been having a problem for some time now. When receiving (some) mail from German freemail provider web.de, the following headers are found inside the mail postfix ...
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21 views

Mail server can't connect to database

While trying to set up a new Mail server, I installed and configured dovecot, postfix, postfixadmin, squirrelmail, clamav. I imported a database from another (old) mail server to the new one. Postfix ...
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66 views

How to use ViMBAdmin with Courier (Mail Server) Postfix / MySQL

i've setup and got courier and Postfix working but ran into a issue when setting up ViMBAdmin. Courier cannot read the passwords from the database i believe, anyone know how to audit the daemon to ...
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53 views

Postfix: Resend 'hard' bounces

I had a number of messages get rejected by the recipient's mail server with a status 550 code due to an IP address blacklist. I've sorted the problem that caused the host to become blacklisted, and ...
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56 views

Prevent spam being forwarded by Postfix (while locally delivered to a Junk folder)

We have a pretty standard Postfix/Amavis setup where we use the Dovecot LDA to deliver mail locally. Amavis passed spam mail and we use Sieve to drop it in the Junk folder of the user. The problem is ...
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18 views

“Masquerade” mail sender on a multi-domain shared hosting

I've a single host with CentOS 6.3. I manage that host via SSH. The server itself is uname -n: servername.foo.com. On this host I've multiple, unrelated httpd vhosts. The problm is: when one vhost ...
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76 views

Postfix mail stuck in queue indefinitly

I've been trying to set up a simple mailserver for myself using the following guide : Guide. I've added my domain via Postfixadmin and setup a info@mydomain.org mailbox. But when I try to send to mail ...
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39 views

Postfix - mixing virtual_aliases and virtual_mailboxes (catchall)

I'm running postfix (2.9.6) with dovecot (2.2.5) and I two domains: example.com as a virutal_mailbox_domain example.org as a virtual_alias_domain I'd like to set up two different catch-all rules ...
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191 views

Cant get IMAP to work on debian & postfix

I'm trying to setup a simple mail server on a debian vps with postfix and dovecot. I can send and receive email from the server via mutt but when i try to connect to IMAP via Thunderbird for example, ...
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114 views

postfix opendkim DKIM-Signature and Domainkey-Signature

Running postfix on CentOS 6 as an edge relay for a while now, so all our outgoing mail is routed through one point with opendkim signing the mail. This works great. I was originally using ...
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67 views

Virtualmin configuration disable all email send and receive

We have a server (Ubuntu 12.04) that we use mostly for development purposes. There are about 50 vHosts created in Virtualmin that I would like to completely disable the ability to send email. Under ...
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53 views

Configure postfix to limit total number of connections from any and all SMTP clients in a given time period?

I am trying to figure how to configure Postfix to operate within the requirements given by Spamhaus for free usage of their DNSBLs (http://www.spamhaus.org/organization/dnsblusage/). They specify that ...
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94 views

Postfix + Amavisd-new as smtp-proxy (pre-queue) for inbound only, postqueue for outbound?

I am in the planning phase of building a mailserver with the following requirements relevant to my question: Use postfix, virtual users (two virtual domains) Must filter pre-queue to reject ...
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50 views

Google Apps MX for User Accounts, Custom Postfix for Sending only, same domain

I have a google apps business account which provides the use of gmail's mx servers. I would like to use this for users to send/receive email. However, I have a specific need to send bulk emails on a ...
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195 views

How to configure Postfix to use multiple IP aliases for sending out email?

Running Postfix on Linux. I know how to create IP aliases. I know how to create multiple smtp transports and bind them to various IPs: smtp_bind_address=X.Y.Z.Q I know how to assign a transport ...
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237 views

postfix: relay all mail to office365 server

I'm decommissioning an Exchange server and moving the mail accounts to Office365. However, some of the computers on my LAN generate email status messages. Previously those were delivered to my ...
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98 views

Postfix sending corrupt pdf attachments to exchange

We have a php web application that creates pdfs and send them to users , everything worked fine on a centos 5 with postfix 2.3 , we want to upgrade to centos 6 with postfix 2.6 . sending to gmail or ...
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125 views

Postfix - SASLAuthentication Problems Cram-MD5 with StartTLS

Recently I configured my mail server which uses Postfix and Courier. Everything works except for the authentication when sending mail via my Postfix server(running on port 587) which has StartTLS ...
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135 views

Postfix - redirect mail based on source server IP address

I have a test postfix (2.6.6) server configured to intercept all outbound emails and store them locally, so that the devs can test email functionality of client apps without spamming the world. The ...
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0answers
42 views

Filter mail sender PHP files

Is there a way to tell PHP which PHP files exactly are allowed to send emails? I would like to create a whitelist about these PHP files, and other PHP files would not be able to send emails at all. ...
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0answers
86 views

Issues forwarding email (Nginx, Postfix)

I'm trying to forward emails from a new Linode VPS I'm (attempting) to setup, and it's not working correctly. I have two gmail accounts. If I test from the account I'm not forwarding to, to the email ...
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119 views

Postfix to Spamassassin on local host using public IP

I have 2 VPSes running Debian Squeeze. Both were set up pretty much identically. They are named Sam and Taz. Taz, as far as e-mail goes works almost perfectly. Sam has had issues. Originally I posted ...
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27 views

Postfix: Keeps delivering the same E-Mail queue

Recently, my ISP had some trouble with their HDD's and it happend to be that the drive in my dedicated server went up smoke. No big deal, their pushed the latest backup on a new HDD, alright. But, ...
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0answers
25 views

How to add postfix address that gets piped through script

I have a Debian server running postfix. In the file /etc/postfix/main.cf there is this line: mailbox_command_maps = pcre:/etc/postfix/mailbox-pcre The file /etc/postfix/mailbox-pcre contains lines ...
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324 views

Postfix not receiving external mail. Sending mail OK

I am having some issues setting up Postfix to receive mail on Centos. This is a web server that I'm setting up to only pipe mail to a php application so the server hostname is hostname.mydomain.com. ...
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142 views

postfix, dovecot, dovecot-sasl, ldap, and static UIDs for NFS-shared email storage

I'm trying to build a Ubuntu 12.04 mail server as such. Must: Auth against an existing Open-LDAP server. Storage in Maildirs on an existing NFS server, everything owned by 8:8 (mail:mail). Auth is ...
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97 views

multiple login credentials for same relayhost

i struggle with my postfix config. i want to use the same relayhost for my two domains, but i have different credentials on the relayhost. is there a way to tell postfix to use two different login ...
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110 views

PostFix not sending received emails to users correctly -> wrong directory

I'm trying to setup a mail server on Mac OS X Mountain Lion (10.8) Here's the thing: the emails do show up corrrectly in the .Sent Messages folders (when I send from one user to another in accounts ...
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179 views

postfix not passing email through policy server

after installation of cluebringer on Plesk 11 postfix, the postfix does not talks to policy server, or does not send emails through the policy server at all: postconf -n output alias_database = ...
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117 views

Fetch all Mail from an IMAP server with Postfix to distribute on local IMAP server

The situation: The constellation: We have a managed, dedicated server from a professional provider. We currently have Tobit David.fx server in use within our local network which fetches all E-Mails ...
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49 views

sasl username some time send mails or sometime show error please check sasl username and password

I have a mail server (VPS) on CentOS 6.3. I have created a virtual server in virtualmin and I use this virtual server user as a SASL user for my mail server. After sending 50 to 100 emails using this ...