Postfix is a free and open-source mail transfer agent (also "MTA"), written in 1997 and still actively developed.

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5
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480 views

Connection timing out when connecting to Milter service

I'm using a VPS with CentOS 5, containing Postfix and OpenDKIM. I have set up OpenDKIM using this guide. Everything seems to work properly as the log in /var/log/maillog does not report anything other ...
3
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112 views

dovecot WILDCARD SSL (certicate.crt, private.key, intermediate.crt) not working

I have installed dovecot and postfix and got it working, but when I change the ssl_cert_file, ssl_key_file and ssl_ca_file dovecot configuration to my WILDCARD SSL certificate (working on apache) it ...
2
votes
0answers
83 views

Can I reconfigure postgrey to keep mail instead of rejecting it?

I have postgrey on my mailserver and it works really well. I actually suspect it works a little too well in that there are quite a lot of faulty mailservers out there that don't bother retrying. ...
2
votes
0answers
357 views

Remove root@localhost from e-mail's headers

I am trying to install an e-mail server in my CentOS server. I have installed and configured postfix and bind, but when I send e-mails I still get "root@localhost" and 127.0.0.1 in my e-mail's ...
2
votes
0answers
516 views

“Recipient address rejected” when sending an email with sendgrid

In postfix, I'm using relay_host to send an email to an external address using sendgrid, but I get an error about local ricipient table when sending an email from my PHP code. This is my main.cf in ...
2
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0answers
508 views

Postfix: change sender address of bounce (mails from fetchmail)

I am running a Postfix MTA. Fetchmail is used to get mails from several POP3 accounts. The problem is: If a mail cannot be delivered, e.g. because it exceeds the size limit of the mailbox, a bounce ...
1
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0answers
61 views

Signing-milter / SMIME - how are this email signed incorrectly?

I have a problem with signing-milter (http://www.signing-milter.org). The problem is that the -b flag is required, and the -b flag is not recommended because it outputs non-RFC compliant email. ...
1
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0answers
28 views

Conditional relay with credential based on domain recipient?

I use postfix to send email directly, but sometimes outlook.com won't deliver my business email messages. After changing the SPF record, the delivery succeeded, but goes to the recipient's Spam ...
1
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0answers
289 views

Postfix - SMTP mail delivery failed with “Connection timed out” error

I have installed postfix mail server in ubuntu machine. I am facing some issues with the mail sending to other domain mail servers (Google, Yahoo, Outlook...). I am using virtual domain to send the ...
1
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0answers
37 views

Postfix - relay issue on my end?

Maybe someone experienced more than me in Postfix can help me out a bit. mail.log:Dec 11 22:14:36 server596 postfix/smtp[31301]: 3A5BC17AC00D: to=<int@njsbw.com>, ...
1
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0answers
61 views

Multiple postfix instances one host

I have a server on which i need to add setup a second postfix configuration to send e-mail (doesn't have to receive) that's being sent in from a PHP web application that's hosted on the server aswell. ...
1
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0answers
21 views

How to add new 'From' email id each time sending email using PostFix server

I am new to PostFix and have setup PostFix as a server recently. In the testing, PostFix is working fine and relaying the emails with 'From' email address stored in the PostFix credentials files likes ...
1
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0answers
101 views

Duplicate and relay mail from postfix

We currently use Google Mail for our teams email. We want to move to a self-hosted email server. Some of our team members prefer using Google Mails interface and asked if we could continue having ...
1
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0answers
113 views

Email Issue - “On Behalf Of Blackhole”

I am experiencing an odd email issue that I haven't been able to find any answers to. I have a Ubuntu server setup with postfix that uses mailgun to send emails. I'm not using the mailgun API, just ...
1
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0answers
2k views

Google Mail blocking emails sent by postfix

I have set up an email server, but I have a problem with sending mails to Gmail. This is my /var/log/mail.log: Jun 4 20:49:26 jenny postfix/qmgr[6064]: 4CBDB67482: from=<mail@[...]>, ...
1
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0answers
118 views

Email Spoofing - Bounce back messages

A client of mine (onto my mail server) receive back some bounces for mails that he haven't never sended to non-existent addresses. Of course, inspecting the header, the outgoing server isn't mine. I ...
1
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0answers
111 views

Postfix receives mail, seen in /Maildir/, but no mails when connecting through Thunderbird (IMAP)

/var/log/mail.log seems fine to me Dec 10 16:30:21 server dovecot: imap-login: Login: user=<mailtest>, method=PLAIN, rip=my.ip.addr.xxx, lip=ser.ver.ip.addr, mpid=23682, TLS, ...
1
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0answers
58 views

Query regarding smtp_fallback relay in postfix

I have 3 postfix instances in my server. I am trying to configure my server in such a way that, the deffered mails in 1st instance need to be relayed to the 2nd instance. Thereby i can reduce the ...
1
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0answers
389 views

mozilla thunderbird can receive emails but cannot send (imap/postfix)

i run a dovecot imap server on an ubuntu 8.04 machine (old, i know, but there's no chance of an upgrade any time soon). anyway, all was working smoothly until i rebooted the server the other day and ...
1
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0answers
248 views

Configure Ubuntu Server VPS to send mail without going to spam

I have installed and configured Postfix on a VPS. I have managed to get it so I can send and receive mail. However every time I send mail from It, it get's marked as spam and was wondering how I ...
1
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0answers
121 views

OpenDKIM Signing return fail when spaces in mail

Few days ago I install OpenDKIM Signing using on my CentOs 6 server by manual - http://stevejenkins.com/blog/2011/08/installing-opendkim-rpm-via-yum-with-postfix-or-sendmail-for-rhel-centos-fedora/. ...
1
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0answers
177 views

Postfix configuration issue?

I don't know if it is the right place to answer this question (please tell me I will remove it). I have an error message when using telnet to send an email to ab account I have specified in my postfix ...
1
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0answers
210 views

postfix mail queue - get bottleneck - Debian squeeze

I have a problem with Postfix 2.7.1, Debian Squeeze: send and receive mail with no problem working locally, send e-mail outside work without a problem, the problem is when someone sends a large ...
1
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0answers
293 views

Dovecot/Postfix-mysql e-mail Aliases are not correctly forwarded

I recently set up Dovecot/postfix-mysql on my Debian Squeeze Server and I have a bit of a problem. When ever I send a email to an alias (foobar@mydomain.com forwarded to foobar@gmail.com for example) ...
1
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196 views

In Ubuntu 12.04, how do you tell saslauthd to use getpwent instead of PAM?

I have a fresh install, upgrading from ancient Ubuntu 8.x, and I just can't figure out where this setting is supposed to be in Ubuntu 12.04. Please help! Thanks
1
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230 views

Ubuntu 10.10 Desktop: configuring postfix to send mail as

I have been learning how to use postfix to end email using the command line, which I find helpful when at work and I don't want to open a browser or switch to mouse, to send an email about my broken ...
1
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0answers
282 views

DKIM milter with Postfix doesn't sign additional headers passed to PHP mail() function

I use CentOS server with Postfix for mail sendind and my PHP application use mail(0 for mail sending. Some "FAQ" problem with this setup have been solved quickly using Google (e.g. passing "From" ...
0
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0answers
6 views

I don't recieve virtual alias email from my postfix/dovecot server in Gmail

For some reason the regular virtual user email accounts like admin@example.com comes into Gmail via POP3/IMAP just fine - but none of the virtual alias email comes into GMail! Gmail says it retrieved ...
0
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0answers
3 views

DoveCot users + multiple domains

Hi I am trying to get dovecot to work with multiple domains My /etc/aliases looks like this # See man 5 aliases for format postmaster: root shop: shop ben: ben When I try changing it to ...
0
votes
0answers
9 views

Prevent Fake E-Mails with Postfix

I have a secure and almost-properly-configured SMTP/Dovecot server running, but I do have a problem. As it's currently set up, anyone (who has valid credentials) can send e-mail from any address in ...
0
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0answers
15 views

Relay access denied (in reply to RCPT TO command) Postfix Issue

I am trying to configure my server for email taking reference form this link: koray.me/smtp-relaying-outgoing-mail-in-postfix-using-webmin. I used Mandrill smtp server in my case. I have also ...
0
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0answers
17 views

The emails sent by mandrill are soft-bounced by the postfix server

We have a app written under php (symfony2) and we are sending a certain type of email via mandrill. It works the past months but now all the emails sent to info@domain.com are being soft-bounced and ...
0
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0answers
6 views

make postfix bypass amavis completely for specific domains

I want the postfix agent to bybass the amavis scanner for all mails from and to a specific domain. So, i added the following line to /etc/postfix/main.cf header_checks = ...
0
votes
0answers
7 views

Postfix errors when triggering mails from a server different than the mailserver

We used to have a server for everything, where our PHP scripts and the mail server would run on the same server. Now we moved our php scripts to a different server and we seem not to be able to send ...
0
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0answers
32 views

smtps service not found/“warning: connect to transport private/smtps: No such file or directory”

I'm trying to access an SMTP smarthost example.com using TLS via port 465 by adding smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o ...
0
votes
0answers
15 views

postfix multi bcc_sender_maps

I am trying to configure postfix to send mails to multiple e-mail address using sender_bcc_maps user1@domain.com -> bcc1@domain1.com bcc2@domain2.com my configigurations is postfix + vusers (sql) ...
0
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0answers
52 views

Outlook 2013 connects to Postfix/Courier server and can send emails, but doesn't open Inbox

I've configured a Debian server with Postfix and Courier along with SquirrelMail for a client. I've configured the server with his email accounts, and these are accepting emails without issue. I've ...
0
votes
0answers
73 views

Dovecot imap connection closed by remote host

I have setup postfix and dovecot on my ubuntu 14.04 on a digitalocean droplet. When I telnet to my localhost on imap, I get the output below, can anyone help me.. telnet 127.0.0.1 143 Trying ...
0
votes
0answers
30 views

Postfix private relay

I've setup my postfix + dovecot server successfully and can send/receive mail however I would like to setup a cluster of 2-3 extra servers which are used for outgoing mail. I have looked into options ...
0
votes
0answers
22 views

Masquerade address based on destination with Postfix

How do I set postfix to replace the "From" header based on the destination domain? For example: Sending email from me@domainA.com to you@domainB.com should be changed, so as to appear as if the email ...
0
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0answers
44 views

How to configure postfix Ubuntu with a tk domain

I have a free my.tk domain and I want to send emails with it using postfix running on my Ubuntu server. Please look at the my.dot.tk website and post a step by step tutorial on how to configure ...
0
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0answers
35 views

Forwarding Postfix email to multiple users not working

My /etc/postfix/virtual currently contains (emails obscured for privacy) teals@example.com example+teals@gmail.com, other_example@gmail.com, third_example@gmail.com example@example.com ...
0
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0answers
26 views

Outbound mail queue lifetime standards

Description: I am trying to setup an email server with qmail and postfix as a MTAs. I am using postfix to handle my outbound mail flow traffic. Problem: I have set postfix maximal_queue_lifetime to ...
0
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0answers
48 views

Softfail with properly configured SPF

I have just set up a mailserver with postfix+dovecot. Sometimes, when I send an email, I get an SPF softfail (the other times, the test passes). It seems postfix isn't communicating the IP address ...
0
votes
0answers
256 views

How to configure to send emails from localhost pc with postfix xampp and xubuntu configuration

I am building some website and for testing purposes i need to configure somehow to be able to send emails from my pc. I have xubuntu installed on my home pc and xampp for local development. I have ...
0
votes
0answers
175 views

macosx: How to unblock SMTP port?

In /var/log/mail.log I see runs of time-out errors in quick succession, like this Dec 13 15:50:31 myserver postfix/smtp[2911]: connect to alt2.gmail-smtp-in.l.google.com[74.125.138.26]:25: Operation ...
0
votes
0answers
39 views

Postfix error: proxy-reject: END-OF-MESSAGE: 451

I installed mail server by using the fufix bash install script. I cannot send and receive messages. Keep getting this message in log: mail1 postfix/smtpd[25142]: proxy-reject: END-OF-MESSAGE: 451 ...
0
votes
0answers
89 views

How can I have Postfix add a header to all outgoing mail based on command?

I would want to have postfix to run the command: /usr/bin/hashcash -mXb 26 <RECIPIENT1> <RECIPIENT2> ... <RECIPIENTn> and add the output of this command as a header. How can this be ...
0
votes
0answers
36 views

msmtp complains no auth method found

msmtp output: <-- 220 example.com ESMTP Postfix (Ubuntu) --> EHLO example.com <-- 250-schemacs.com <-- 250-PIPELINING <-- 250-SIZE 10240000 <-- 250-VRFY <-- 250-ETRN <-- ...
0
votes
0answers
80 views

How can I set a conditional relay in Postfix?

We have Postfix setup to relay mail to our hosted Internet facing mail server. Is it possible to configure Postfix to relay mail differently based on the destination? We currently have it working so ...