-3
votes
1answer
44 views

Setting SMTP Banner to match PTR

I'm attempting to fix an error that I get when I run a DNS Report on my VPS. According to the report: SMTP greeting Malformed greeting or no A records found matching banner text for following ...
0
votes
2answers
39 views

View realtime list of connections to Postfix

I am running Postfix on a linux box with a couple hundred local users with mailboxes. Is there a way to monitor all incoming connections (SMTP) to the Postfix service? I.e. a live stream of "IP ...
0
votes
0answers
31 views

How to force postfix follow (dns) mx priority even for local domains on Linux Ubuntu Server with Plesk

Use Case Scenario I have a Linux (Ubuntu 12.04) with Plesk (11.5) hosting server where some clients use the server's mail service only as a failover. They set up an external mail server with higher ...
3
votes
2answers
74 views

Backup MX server used to queue mail

In short: I need to setup backup MX server, which will queue messages it receives for later delivery through original MX, AND it must only accept messages for mailboxes which will be listed in ...
-1
votes
1answer
61 views

Postfix + Mailq: Mailbox Full no bounce

I have a mail server and alot of clients. Some of my clients have many email accounts and dont use some of them. So, I have alot of mailboxes full, which receives dozens of emails every day. So, my ...
4
votes
3answers
96 views

How to limit amount of email sent by postfix to certain domains and control it by using mail header?

Goal I'm looking for a solution to limit rate of e-mails sent to specific e-mail operator (several Top-Level domains, all of them I know) on hourly basis. I also need some way to control the rate on ...
0
votes
0answers
43 views

Postfix, schedule batches of email to be sent

Is it possible to have postfix limit the amount of emails it sends at once and when there is larger than x email, send them out in timed batches (wait 5 minutes, send another 50, something like that)? ...
1
vote
1answer
58 views

Have Postfix bounce certain addresses with a custom message and forward all other messages to another server

We have a list of users who no longer have mailboxes in our Exchange environment. We want to have a very specific reply to these users with a possible custom variable. I thought Postfix would ...
0
votes
1answer
36 views

Postfix how to triggering my script when outgoing email status is sent?

I want to run a program when postfix has successfully sent out a mail (local or remote). I would like to pass the headers to program and if possible also the destination ip or address (exclude spam ...
0
votes
2answers
59 views

Postfix mail server acting as an open relay

I'm trying to get postfix to work with mail clients (thunderbird / outlook), but the only way I can achieve it at the moment is by turning the mail server into an open relay, which is very bad, ...
2
votes
1answer
60 views

Postfix multiple checks

I want to achieve the following with Postfix: Run all emails through a black list Allow any clients sending to a list of domains Allow some clients sending to any domain This is what I have: ...
0
votes
0answers
34 views

send outgoing email via postfix from mail client [duplicate]

I have installed postfix on my ubuntu that is hosted on digitalocean. What I want to do is. With my smtp server setup, I want to use it to send mail from my email client. I don't need to receive, I ...
0
votes
2answers
2k views

My server keeps sending emails to hostmaster@xxx.com

When I type mailq on my server, I get: BB523653A62 4025 Wed Jun 4 10:40:07 MAILER-DAEMON (delivery temporarily suspended: host p3smtpout.secureserver.net[208.109.80.54] refused to talk to me: ...
0
votes
1answer
184 views

postfix failed to start CentOS 6.5

DISCLAIMER: I am new to CentOS, so please forgive me if I overlooked something simple. Here is my issue: I recently just reformatted my server to CentOS 6.5 x64 and I have been having issues getting ...
0
votes
0answers
42 views

Spam mails from vulnerable wordpress contact form

Recently I receive an e-mail from my server's host about spam mail coming out from my server's ip. I tracked down the problem to a specific site that is hosted on my server, it is a wordpress site and ...
1
vote
1answer
103 views

“Postfix SMTP server: errors from *” repeated automatic response

I'm attempting to setup a mail server with Postfix and Dovecot. It's not really working all that well, but there's something more urgent I'd like to get fixed first. I sent a few test e-mail ...
-1
votes
1answer
68 views

Postfix user is not allowed to submit mail

I am running a webserver on debian wheezy with postfix and about 3 months ago I had a major spam problem with one my domains with web21 id. I made a fresh wordpress install and everything and the ...
0
votes
3answers
79 views

Limit for outgoing emails for every virtual host

I have virtual hosts on Apache server. I need limited the outgoing emails sent via mail() function(from PHP). Max 100 outgoing emails per day for every host :) How can I do this?
1
vote
1answer
31 views

Postfix Relay Based on Recepient

What is the best practice when one has to implement this sort of ruleset in postfix? Email sent to a@example.com, b@example.com, etc ought to be relayed to smtp.a.example.com. Email sent to ...
0
votes
0answers
26 views

Microsoft servers blocking e-mails [duplicate]

I have developed a CRM that sends out e-mails using a simple PHP mail function. Sadly whenever an e-mail is sent to a Microsoft account, it does not appear. Not even in the spam folder. All other ...
0
votes
0answers
81 views

Cannot verify DKIM signature: pubkey_unavailable

Ok this one is new for me. I get an error looking like this. Apr 27 17:00:46 powerplant postfix/smtp[2695]: E614FC0867: to=<****@***>, orig_to=<wood@*****>, ...
1
vote
1answer
184 views

Postfix limit number of emails send in a month/Day

Is it possible to limit the users to send total email in a month/day. I am trying to enforced marketing users to send newsletter according to their assigned quota. Example 1. user1@example.com: can ...
1
vote
2answers
39 views

Postfix sending and receiving in strange way.

I have an email server, running on CentOS 6.5, 32bit system, with Postfix and Dovecot running along all their dependencies. Let's assume my domain is www.anw.com I have created A record in this ...
0
votes
1answer
32 views

How I can set the errors in spanish language on postfix server email?

I have a postfix servers in my network and very much users not read the english lenguage, and I want set the errors in spanish language. My version of postfix email servers is: mail_version = 2.9.6 ...
0
votes
1answer
62 views

Create IMAP mailbox in linux server

I am using Postfix 2.10.2/Dovecot 2.2.5 on RHEL 5.9. I used to create normal virtual mailboxes. How can i create IMAP mailbox and use it and how to differentiate it from POP3 mailboxes ? I hope i am ...
0
votes
0answers
43 views

how to change postfix mail recipient(To:) when sending to multiple external accounts

I have configured postfix mail server for outgoing mails. This server is used to multiply emails via virtual_alias_maps. x@domain is email account which multiplys emails for aliases, y1@domain2.com, ...
1
vote
2answers
98 views

If I use postfix for mail relay, so is myhostname / mydestination important?

I use postfix to relay mail to 3rd party SMTP and never sent out email directly, and of course I never receive email. So If I set myhostname / mydestination to sth like fake.mydomain.com, which ...
1
vote
0answers
47 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; ...
0
votes
0answers
19 views

Let Postfix show the appropiate SSL Certificate for a variety of host names

i bought an SSL Certificate for domain host.domain.com so my GNU/Linux mail server can deal with secure connections appropriately. That's ok while clients connect to host.domain.com but when they ...
1
vote
1answer
64 views

what user is sending emails from mailq

I have a debian box with postfix on it. I checked the mailq and I do not understand how to read the mailq. I need to know witch user is used to send this emails. here is a example 0F87797868C ...
1
vote
1answer
27 views

Postfix logs status

I always see the below line in my postfix logs, status=sent (delivered via filter service) Does that mean message reached mailbox ? There are other logs like Accepted for delivery Delivered to ...
-4
votes
1answer
141 views

Configure Ubuntu 12.04 LTS for Sending Emails for/from Multiple Domains [duplicate]

I have a cloudserver running on rackspace with Ubuntu 12.04 LTS The server is a LAMP stack that runs multiple live websites. Most sites are wordpress while others are PHP with a few scripts that use ...
0
votes
2answers
98 views

Postfix: Filtering Outgoing Mail According to Sender Subnet

I need some specific LAN subnets to send e-mail to only my corporate domain such as printers or kiosks. How it could be possible via Postfix?
2
votes
0answers
209 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: ...
0
votes
2answers
57 views

Redirect mail from system user account to real email account

First, I would like to thank you for your time. I've come to the following situation: I've got a mail server named mx1.domain.com This mail server is virtual hosting some domains mail accounts like ...
0
votes
2answers
533 views

Postfix: Helo command rejected: Host not found

i have a Postfix 2.9.6 running on Ubuntu with the following configuration https://gist.github.com/anonymous/400fb4afa05e18c6da2b and i'm suffering the following issue where a valid client tries to ...
0
votes
0answers
392 views

Postfix: reject instead of defer type=MX: Host not found, try again

i'm looking for the postfix directive which lets me immediately reject instead of deferring the following kind of errors: Feb 12 20:03:11 we postfix/smtp[9692]: 5B8CC48DCC: to=, relay=none, ...
0
votes
1answer
117 views

Postfix: Reject reject_unknown_recipient_domain and receive instant email notification

when an email is sent to a non existing domain or recipient, i would like the sender to receive an immediate email from mailer-daemon informing the recipient does not exists. Actually, what happens ...
0
votes
1answer
78 views

SMTP Fallback relay server explanation

I am using postfix on Linux redhat server, I can't understand the functionality of smtp fallback relay configured in both main.cf & master.cf Could you please advise?
0
votes
0answers
55 views

Logwatch Postfix Noise

I am using Logwatch to summarise log files on a web server and there is a lot of noise coming from Postfix. For example: postfix/smtpd[18524]: smtp_stream_setup: maxtime=300 enable_deadline=0 ...
0
votes
0answers
99 views

Changing X-Original-To: header in postfix

I am using a virtual file with my postfix to redirect all mails coming to my domain to a user My virtual entry looks like this @domain.com root Now the X-Original-TO header shows root@domain.com. ...
0
votes
1answer
43 views

Configure postfix to view catch-all address in mail header

I configured catchall for postfix as follows: # vim /etc/postfix/virtual @example.com test So if we send mail to xyzjsdv@example.com will get delivered to test@example.com. But the problem was it ...
0
votes
0answers
46 views

Postfix can't connect to relay host

Please help me on this issue :) I've installed postfix 2.10.2 / Dovecot 2.2.5 on RHEL 5.9 server. Every thing is good when i test settings and mails locally, Issue started when I connected to relay ...
0
votes
0answers
50 views

Postfix/Dovecot Service

I have installed Postfix 2.10.2/Dovecot 2.2.5 on RHEL 5.9 from a source code, I forced Installation to be in my own directories not Defaults, I need to add Postfix/Dovecot under services or init.d to ...
-2
votes
2answers
43 views

Postfix Questions [closed]

Kindly find your help on the below, I'm a beginner and I've Bulk of questions. I've downloaded postfix 2.10.2.tar.gz to install on RHEL server 5.9. Installation will be performed via source code. I ...
-1
votes
2answers
47 views

Postfix Configuration files

Kindly find your help on th below :) I am about to install postfix 2.10.2 on my RHEL server 5.9 I'll do this via source code. I need to reconfigure paths in main.cf, Example: /etc/postfix -> ...
0
votes
0answers
73 views

Postfix: Can I block mail from a specific sender if sent to a particular recipient?

AOA, I have been trying this post http://www.arschkrebs.de/postfix/postfix_restriction_classes.shtml to the word since ages without any luck. We are using Postfix as part of iRedmail. Any hint where ...
0
votes
0answers
44 views

Cyrus sasl, Authenticate with Username and Password against Active Directory

I set up a mail server with Postfix and Cyrus IMAP so that the user and password you need to enter are those of AD. I need users can log in from any mail client just put your username and password. ...
3
votes
1answer
572 views

Postfix client host rejected

I set up Postfix+Courier+Roundcube on Ubuntu 12.04, but when I try to send an email with Roundcube, I receive the following error: /var/log/mail.log : Dec 30 20:54:35 server postfix/smtpd[31465]: ...
1
vote
2answers
118 views

Postfix smtp for sending only

The web hosting provider of my company have a mail server with a sending limit of 300 mails a month so the idea is keep using the hosting mail for the mail spool but set up a local Debian server with ...