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

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postfix problems with pattern in virtual file

We are trying to forward all emails to a specific email address. I think everything is set up okay, such as 'main.cf' and 'virtual-regexp' files. If we put the following in the 'virtual' file, the ...
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183 views

Some mail from newly setup mailserver flagged spam by GMail

I have just setup a new mailserver using Postfix on CentOS 7, the machine serves as mx for two domains, domain1.com and domain2.com. The server's hostname is domain1.com and it has the correct PTR ...
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2answers
4k views

Postfix SMTP SSL config: Can't send email but can receive it with SSL

I am trying to finish configuring my postfix/dovecot mail server that sits behind my home's router/firewall. I'm on Mint/Ubuntu 12.04. I'm close. I can connect/retrieve emails via SSL but can only ...
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375 views

Postfix can send but not receive mail

I just finished following this tutorial to set up a postfix mail server on ubuntu 14.04: https://www.digitalocean.com/community/tutorials/how-to-install-and-setup-postfix-on-ubuntu-14-04 When I ...
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1answer
704 views

Can't receive mail, but can send mail? Centos 6 Postfix/Dovecot

I followed this tutorial to setup my webmail on centos 6: https://www.rosehosting.com/blog/mailserver-with-virtual-users-and-domains-using-postfix-and-dovecot-on-a-centos-6-vps/ Everything is setup ...
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2answers
180 views

How to deal with mail senders failing on STARTTLS?

I try to use my mail server richtercloud.de for subscriptions to vger.kernel.org mailing lists. I set up postfix 2.11 running on Ubuntu 14.04 and sending and reception works. I set up postfix to ...
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28 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 ...
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1answer
119 views

I'm having an issue with all postfix mail being rejected with “relay access denied” - Centos 6.5, postfix 2.6.6

If I use smtpd_recipient_restrictions, everything gets rejected with "relay access denied". If I use smtpd_relay_restrictions, everything gets through and ignores the whitelist. Not sure what's up; ...
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1answer
2k views

Fatal error (bad field count) while configuring Postfix

I'm using this tutorial to configure a mail server using postfix, dovecot and mysql. While configuring Postfix I have to uncomment the following lines and then restart Postfix with service postfix ...
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172 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 ...
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1answer
43 views

Postfix bcc to ldap address

I am using Postfix with AD, and I want to send a copy of every email to their manager. Therefore I have these entries: cn: staff1 mail: staff1@company.com manager: ...
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1answer
269 views

sysvinit postfix startup script - only called with “status” argument

I'm having a problem with postfix not starting up on boot. boot.log doesn't show any information whatsoever. Starting the postfix service afterwards works as expected. I added debug information to ...
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197 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 ...
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0answers
144 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 ...
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76 views

Postfix auth with username containing an at sign?

How can I configure Postfix so that a user sending an email can authenticate with a full email address containing an at sign (@) and a TLD, such as "info@mydomain.com"? Currently my "info" account is ...
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40 views

Server (with Postfix) is forwarding my email using a .forward file, is it still saved on the server?

I'm using Postfix on my server but not really using that for much because I have a .forward file setup for all accounts which forwards the email to someplace else, and never sending through the ...
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1answer
551 views

Linux/Postfix with relay: I can openssl to relay host on port 465, but postfix does not seem to connect

This looks like a tough one to me: I'm configuring postfix on my local home server running ubuntu server 14.04 LTS I was able to send outgoing mail through my relayhost on port 26, everything worked ...
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391 views

Detect spambot on ubuntu 12 TLS

Recently I discovered in my mail log that there is an enormous amount of spam being sent from my home server. I am running no websites, just zpanel. I closed down all the ports and am monitoring the ...
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423 views

postfix doesn't work with IP as hostname

Using Ubuntu 14.04 x64 I had a working installation of Postfix which was handy for sending emails in my terminal, but I had an issue with an application that was critical for my workflow. In order ...
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1answer
10k views

Postfix Relay Access Denied When Sending To Gmail With Telnet

I have postfix and dovecot setup to deal with mail for my domain. imap appears to work ok when reading local mail but when i try to send an email using telnet with localhost and the smtp port it gives ...
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2answers
199 views

Sending mails and narrowing what script does it

I'm using a very old Ubuntu server that was some time ago a mail server which was infected. Sadly there is a running web page on that server. Some script/page/malware is trying to send a lot of spam - ...
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1answer
157 views

Strange emails in postfix queue

Currently I am not sending any emails, I have postfix and dovecot installed but in the in the postfix mail queue I see strange emails almost every minute, i dont know from where is this spam ...
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1answer
2k views

Mailx is is not working

I have been trying to send emails throw Linux using echo "hi abhijeet2" | mailx -v Admin abhijeet123@gmail.com Whic works fine on other linux system ,but not working my system. I have tried to ...
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1answer
411 views

Postfix to send all mail to /dev/null except one address (alias)

My postfix server is working on a particular domain name through a relay, so it's like that: Client send to abs@subdomain.domain.com -> domain.com production mail server -> internal mail server on ...
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1answer
50 views

postfix virtual redirect not working properly

I setup postfix on one of my server to redirect incoming mails via virtual.db . I already changed my main.cf and added "virtual_alias_domains" & "virtual_alias_maps" my "virtual" file looks like ...
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97 views

Local SMTP Server — prevent spam flag?

I opened up port 25 on my router, so now I can use sendmail to send email. However, the emails I send are being marked as spam by my personal gmail account (understandably). The "from" field defaults ...
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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@[...]>, ...
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1answer
254 views

Ubuntu + SSL ports + AVAST

I have an interesting problem with communication via standard SSL ports. Fresh installed Ubuntu 14.04 server + Postfix + Dovecot, SASL authentication provided by Dovecot, self-signed certificate ...
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282 views

Configuring email in PHP for Elgg using postfix

I am trying to setup PHP for running Elgg. I have PHP 5.5 installed in a Ubuntu 14.04 VirtualBox VM. I need to complete the following requirement (elgg requirements page) : Proper configuration and ...
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1answer
2k views

Can't send email to the internet from Postfix mail server. (Relay access denied)

I have a mail server running Postfix in my LAN with which I can send and receive emails in my LAN and send from the WAN to the LAN. I can't send from the LAN to the WAN though. I am trying to use my ...
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1answer
493 views

Configuring Postfix as SMTP relay (only)

I have a Postfix 2.5.1 on a Debian 4.0 PPC server. I intend to use this as an SMTP relay for outgoing email from my mobile phone (as my phone service provider recently dropped their SMTP server). The ...
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1answer
67 views

Postfix corrupting Japanese characters

I'm having a problem with certain Japanese characters being corrupted when sent by my MTA, Postfix. I've done some trial and error sending the same message from approx 7 different servers running ...
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1answer
87 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 everyone ...
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1answer
179 views

Postfix virtual users without database [closed]

I've made several attempts to setup a mail server. Each time, I find a tutorial to follow, and each time I get frustrated with the tutorial for one of the following reasons: The tutorial doesn't ...
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1answer
519 views

Not able to send mail via Ubuntu VPS

I'm having a Ubuntu VPs with zpanel isntalled on it. There is something wrong going with the mail. Im not not able to receive the mails from my contact form on my wordpress site ( the site is hosted ...
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1answer
1k views

Postfix allows unauthenticated users to send emails

Hey I set up Postfix to use cyrus SASL implantation and I'm able to login and send emails, but I can still telnet on port 25 and send mails even if I'm not authenticated, which I whish to deny. ...
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1answer
104 views

Domain [ Understanding ] issue when creating a Linux email server

Ok, here goes my paradoxical question. For about 1 year into my hobby-ish career, I used to buy my domains and a hosting package from Reseller Club. I purchased their " shared hosting " plan and ...
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30 views

Client computer blocked by postfix

I have been trying to connect from a Windows client computer to a Postfix server running on a Suse Linux Enterprise 2012 SP3 but it has been completely impossible. Connection is not possible either ...
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1answer
2k views

Roundcube login error

Using postfix, courier-imap, courier-pop, roundcube I get this error when trying to login through the roundcube web login: [08-Apr-2014 11:44:04 +0000]: IMAP Error: Login failed for user@domain.com ...
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1answer
28 views

Postfix with two vhosts

I've got this problem: I installed postfix (v. 2.10.2) on Ubuntu 13.04. I've got there two vhosts with two different sites, for example: aaa.com and bbb.com. Got those domains connected with google ...
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1answer
3k views

What permissions on /var/mail directory?

I've been suffering a permission problem in Postfix/Dovecot for a couple of days now. The setup is using virtual domains and users, so the path to user's home is /var/mail/<domain>/<user>; ...
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443 views

Postfix/Courier - list known email accounts or addresses

I'm trying to set up an IMAP server. Its a new server in a migration. I thought I completed all the steps from Virtual mailboxes with courier-imap and postfix, but apparently I have missed something. ...
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1answer
1k views

Can postfix forward all outbound email to a relayhost except for local user-to-user email?

On my home Ubuntu box, postfix is configured to relay all outgoing email to outgoing.verizon.net. Unfortunately this includes local user-to-user email (e.g., from local cron jobs to me, or from me to ...
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252 views

Postfix: Block all inbound and outbound access but allow all for one user

How can I restrict access for an internal domain but allow all access for one user, say the admin of a domain? All users should be blocked from communicating outbound and no external domain may ...
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1answer
795 views

Mailman + Postfix: unknown user

I set up postfix + dovecot and know that I want to have mailing lists I decided to install mailman. Everything is working except that I cannot send emails to my mailing list (and this is quite ...
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165 views

Ubuntu Server 13.10 | Postfix 2.10.2 does not read smtpd.conf

I would like that my Postfix accepts only LOGIN and PLAIN authentication methods (or methods as first). I did following changes in configurations files. /etc/postfix/main.conf Code: # SASL ...
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1answer
615 views

Postfix is Sending Spam [closed]

I have an Ubuntu 12.04 server, hosted on AWS, that powers a dozen WordPress installations using Nginx and php5-fpm. The problem just began one day. My server was down. Panic! Whenever I turned it on ...
2
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1answer
447 views

Bulk-deleting inbox mails managed by POSTFIX

Had an issue several hours ago with a client mail account, which got compromised. As a result, he had hundreds of thousands of spam queued in postfix, which lead to several issues. Everything's fixed ...
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1answer
53 views

unable to delete/mark-read emails

I think there is something wrong with the folder-path configuration, but I am unaware how to solve this. I can send/recieve mails over IMAP with my mail applications, but no emails will go marked as ...
0
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1answer
33 views

Disabling sentbox in postfix over Squirrelmail

I have installed POSTFIX over Squirrelmail on CentOS Linux... The services I have ran are: service httpd service ssl service mysql service postfix service saslauthd service dovecot But I want to ...