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

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1answer
77 views

iptables + postfix cant send email

Recently my host provider sent me a letter about some sort of attack from my server. I'm not into security so i found some tutorial and closed all unused ports with iptables. Here is my iptables ...
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1answer
16 views

some services switched off automatically

with my company we have a VPS. We have some issues with it. this morning the pure-ftpd was stopped. I had to start also postfix and the cron jobs were off for 3 hours. My config : Debian GNU/Linux 7 ...
0
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1answer
326 views

Postfix SMTP Server fails to send messages to anyone outside the domain

Here is the result of a recent test on my SMTP server, I just want this server to send emails which used to work perfectly upto about a week ago Resolving hostname... Connecting... SMTP -> FROM ...
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1answer
139 views

sieve redirect to foreign email gets “Relay access denied”

I have a postfix mail server with sql authentication and I want to implement sieve on it. Sieve is working relative good, rules who contain 'fileinto' are executed perfectly. I configured a rule in ...
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votes
1answer
154 views

postfix cannot access dovecot config file

I do not receive email because of the below, as mentioned in my mail.log: Sep 21 07:58:32 WWW postfix/pipe[5118]: 8F5FD605C8: to=<myname@mydomain.com>, relay=dovecot, delay=50089, ...
0
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1answer
183 views

Postfix: Pipe to script bounces sent to specific virtual user

I'm building a small ticket system where basically some mail accounts of my email server are piped into a PHP script that will take care of the emails. The server is running, I can send email over ...
1
vote
1answer
152 views

Blocking messages with an empty message-id in postfix

I've been receiving some spam where the message-id is empty, for example: Sep 18 12:07:16 postfix/cleanup[21530]: message-id=<> I don't use SpamAssassin. Is there a way using postfix to refuse ...
0
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1answer
69 views

Postfix config for backend webservers behind a load balancer [closed]

I've two web servers (ws1.example.com, ws2.example.com) with postfix installed locally as a mail rely (using mandrillapp), user access them via www.example.com, which is a load balancer On ws1, the ...
0
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1answer
92 views

Postfix/spamassassin incoming mail not being filtered, but outgoing is

I have what I hope is a fairly normal home postfix setup. I fetch POP3 mail using fetchmail, which passes on to postfix via /usr/sbin/sendmail. In postfix's master.cf I added a spamassassin service, ...
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1answer
1k views

550 Recipient address rejected: User unknown (in reply to RCPT TO command) - for an external domain

In postfix, I'm unable to receive mails from the specific domain but I'm able to send mails to it. For some reason postfix thinks the domain is internal, correct me if I'm wrong? Sample from postfix ...
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1answer
117 views

Postfix: use relayhost only when direct delivery not specified

I read up on using relayhost with Postfix 2.6.6. It's possible to use different relay hosts, with different credentials, for different senders. But how do I use direct delivery with specific senders ...
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2answers
56 views

Is there a way to whitelist and address or domain in Postfix's helo_restrictions?

I'm using postfix helo_restrictions to blacklist some spam leaning domains. One of those is a service that provides email service to people who want email addresses with their domains, but don't want ...
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1answer
40 views

How postfix support multiple mail domain redirect?

I'am config the postfix server to receive inbound mail. there is need to support two domain in one server. but I found I can not make it right. /etc/mailname a.com postconf -n alias_database = ...
0
votes
1answer
176 views

setting up postfix email forwarding on ec2 when using route 53

I'm trying to make email forwards for my domain on EC2. I use route 53. I have added following two lines to /etc/postfix/main.cf virtual_alias_domains = example.com virtual_alias_maps = ...
2
votes
1answer
110 views

Postfix SASL with Dovecot and Authenticated Smarthost

I have a bit of a problem; I have configured postfix to use dovecot for SMTP AUTH, therefore I had to specify dovecot authentication in the main.cf file. The problem is, I need to also authenticate to ...
0
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1answer
163 views

dovecot error Unknown setting: unix_listener

I'm trying to enable postfix auth. I'm editing the this section from /etc/dovecot/conf.d/10-master.conf # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 user = ...
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votes
2answers
1k views

“Relay access denied” when sending email via php mail in zpanel

I have installed zpanel on my centos server i am using php mail function to send signup email to my clients. it was working fine on my virtualmin server but when i moved my site to zpanel server it is ...
0
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1answer
67 views

Postscreen sometimes stops the mail

"The Postfix postscreen(8) server provides additional protection against mail server overload. One postscreen(8) process handles multiple inbound SMTP connections, and decides ...
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0answers
36 views

Postfix — auto blacklist senders who send to 'honeypot' email addresses [duplicate]

I'm using postfix + spamassassin (amavis) now and I'm trying to increase my hit rate, so I've been looking at the logs to try to see any patterns in email that is obvious spam but gets low scores. ...
0
votes
2answers
107 views

How to verify if an email was successfully sent by postfix?

I get asked day by day to verify if a mail was successfully sent out by our server (because client complains that he sent it to xy and his recipient never got it). Most likely this isn't our fault but ...
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2answers
329 views

Spamassassin filter systematically produces negative (ham) scores for spam messages

I have problem with lots of spam. My server setup is VPS with CentOS 6.5 and Dovecot+Postfix+Spamassassin. Here is source of one of the messages: Return-Path: <nancy_mitchell@tagbook.co.nz> ...
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1answer
41 views

PostFix Config and PHP

I'm trying use the PHP mail function to send email on a server (the server is only suppose to send emails and not receive any emails) The PHP mail function returns that email has been sent, however ...
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votes
1answer
70 views

how to not bounce, postfix to not return “not found” when the address does not exist [closed]

I want to enable a second MX with the same domain, with some users on different MX. how is this to be done? how do I tell postfix to not bounce, postfix to not return "not found" when the address does ...
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0answers
33 views

How to make postfix to deliver via a command

I have setup a postfix server that will receive several emails and deliver them to OpenERP. It's currently working, but I would like to improve the overall schema so that postfix delivers (i.e ...
0
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1answer
101 views

Postfix Maildir to MySQL migration

I'm currently running postfix on a CentOS 6.5 box.The mail is currently stored in the users Maildir directory. Users utilize roundcube as a web mail client. This is a low priority machine and there ...
1
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1answer
373 views

Postfix Sender Verification 550

I have Postfix and Dovecot installed on a VPS, and configured to forward mail on to a Gmail address, and accept smtp requests from gmail so that it can send on that domains behalf. TLS and ...
0
votes
2answers
482 views

postfix SASL authentication failed - Internal authentication error

I've recently had to change SMTP relays from Cablevision to Verizon. Verizon blocks port 25 but they will accept SSL via port 465 (per this). I've used this and this to have stunnnel forward ...
2
votes
1answer
34 views

Postifx header_checks cut off last part of subject

One of our main applications is sending out emails that have encoded subjects with base64 but that application is sending wrong characters at the end. I am looking at Header_checks with subject ...
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votes
2answers
105 views

Why use Dovecot AND Postfix/Sendmail? [closed]

Forgive me if I'm missing something obvious here..... but why do most linux server distros come with both Dovecot AND Postfix (or sendmail)? As far as I'm aware all three of them are Mail Transfer ...
1
vote
1answer
57 views

Postfix from address changed, mail being bounced

I have an Apache server which has been happily sending emails for the past few years - earlier this week the from address on all emails sent by postifx has changed and, as a result, 99% of messages ...
0
votes
1answer
1k views

Delivery temporarily suspended: Host or domain name not found

I have two independent domain ad.vz and ad2.vz, there is gateway between them. There are 3 postfix servers: mailad.ad.vz - postfix server in first domain mailsh - gateway with postfix and two ...
3
votes
1answer
4k views

Postfix: Recipient address rejected: User unknown in local recipient table, even though recipient domain is an external domain

In my company infrastructure, I have an internal mail server with postfix whose name is, say, srv-internal.central.mydomain.tld with internal IP 10.10.128.200. For exchanging mails with the Net, it ...
0
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1answer
40 views

Usefull to enter the same RBL's to Postfix and to spamassasin?

Does it make sense to enter the same RBL's in the postfix config under smtpd_recipient_restrictions and also in spamassasin? Would one not be enough? Thanks!
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1answer
128 views

postfix not going to address on same domain with gmail

I am using postfix and gmail small business apps It seems to be working great for sending email to external domains, but does not work when trying to send to email with same domain So for example ...
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votes
1answer
147 views

Postfix - No greeting on telnet command

I'm trying to install Postfix with Dovecot and MySQL on CentOS 5. I'm new to this and I'm struggling on this more than 2 weeks. I followed this instruction ...
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votes
1answer
269 views

Emails delivered to Microsoft/Outlook successfully, but do not arrive in inbox/spam folders

Struggling with this for awhile. Have searched everywhere, read every post/thread I can find and have a thread started on Microsoft's "Answers" site, but the replies there are so slow. I am running ...
0
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1answer
44 views

Postfix configuration;

I cofigure a postfix/dovecot. I'm using default dovecot certificate for testing. but when i try to restart service integrity fail. But I'm not sure where is the problem. I followed DigitalOcean guide. ...
0
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0answers
128 views

Postfix refuses to send mail to some recipients

I got a third-party application running on localhost trying to send mails with postfix via smtp on the same machine. The problem is that postfix seems to refuse mails to some recipients: Content of ...
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votes
2answers
254 views

Read mail from Postfix using shell script [closed]

I would like to be able to read incoming mail from a Postfix MTA using a shell script. The shell script should be able to retrieve the mail headers, subject, body, attachments, etc., then mark the ...
-2
votes
1answer
125 views

How can I configure myhostname to work with postfix and Ubuntu 14.04 on Azure VM

My hostname file reads as this. virtual-machine-set hostname -f virtual-machine-set /etc/hosts reads like this 127.0.0.1 localhost 191.xxx.xx.xx myazuredomain.cloudapp.net #The following ...
0
votes
1answer
101 views

What are my options for sending email from my VPS with a Blacklisted IP [duplicate]

I have postfix and dovecot running on debian 7, I can send mail fine, but it keeps going to my spam folder when sent to google accounts. Another user who doesn't use gmail said it was delivered to his ...
0
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1answer
61 views

Using Postfix with an external mail filtering service?

The current Postfix (2.9) configuration is pretty straightforward: MX record points to the server running Postfix, Postfix delivers mail to the user's maildir. Users get their mail over IMAP via ...
0
votes
2answers
440 views

Postfix (virtual users) + dovecot + sieve: envelop does not contain original recipient

I have set up my email server following the ISPMail tutorial with virtual users in postfix + dovecot + sieve. My problem is: the envelop "variable" in sieve does not contain the original recipient. ...
0
votes
1answer
105 views

Postfix intermittent lookup failures

i have intermittent lookup error on my postfix/mysql/dovecot/debian when looking to virtual aliases ... it happens on 10% of outgoing emails Revelant log of a failed request : Aug 28 12:17:43 ...
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1answer
171 views

Postfix Splitting Domain to Separate Mailstores using LDAP

I'm investigating a new mail setup to replace Exchange in our organization using Cyrus-IMAP, Postfix and Perdition IMAP proxy server. I'm running into issues dealing with sending emails to different ...
0
votes
2answers
411 views

Using multiple “myhostname” in postfix

Does postfix allow to dynamically change "myhostname" ? I rtfmed a lot but did not found anything qualitative. My installation is a postfix multiple domain, multiple ip (tweaked in master.cf) and ...
3
votes
1answer
152 views

Need help grepping postfix log

I'm trying to search for an unknown string (Message ID) in a log based on a known string (recipient address), and then grep the unknown string to output the entire relevant log information. I'm able ...
0
votes
1answer
300 views

Postfix, Amavis & outgoing mails: How to notify the sender

I had problems with outgoing spam emails from compromised email accounts sending spam mails from my server and landing on blacklists. So I followed the guidelines for setting up postfix with amavis: ...
1
vote
1answer
65 views

Cannot send email to info@ or support@

I am trying to send email from my gmail account to a couple user accounts I have on my new Centos server. The email is setup correctly and I can send receive from accounts ok except info and support. ...
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votes
1answer
30 views

Postfix not delivering from external senders and not logging anything

Some semi-recent upgrades must have broken my postfix+dovecot configuration, but I'm having problems finding out what the cause is. My domain is simendsjo.me with the MX record mail.simendsjo.me. I ...