Free and open source mail transfer agent (MTA) that routes and delivers email. When asking about postfix problem, please include the relevant maillog lines and output of the following command: "postconf -n" (content of main.cf) and/or "postconf -M" (content of master.cf)

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0
votes
0answers
11 views

thunderbird drops connection to smtps for only one email account of 5 on the same host

I have a mailserver running on postfix and so far I have successfully configured four of my five email accounts with thunderbird, and they work correctly. However, on the fifth, and last, thunderbird ...
1
vote
0answers
34 views

Is there a way to configure postfix to bypass spam/RBL checks on a particular destination hostname or username?

I'm running Postfix on CentOS 7, a fairly generic implementation, but I do employ some RBL checking on incoming mail. I like using SORBS for example but I have a few clients who seem to have issues ...
1
vote
2answers
45 views

Postfix maildir delivery failed - are my mails lost?

I was facing the problem that postfix could not deliver emails to my home-directory. I have a running Ubuntu 14.04 server and due to some problem with encrypted home-drive postfix was not able to ...
0
votes
1answer
40 views

Restrict sender and recipient with postfix

Sorry for doubling the questions about this topic but there are so many and some are very confusing, some are still "old" format and some others does not match my case. smtpd_restriction_classes = ...
3
votes
1answer
35 views

Making a trusted TLS connection from Postfix client

I'd like to relay outgoing email from my MTA through a 3rd party server (outbound.mailhop.org) for final delivery. I'm wondering how to make the secure connection between the machines 'trusted'. ...
0
votes
2answers
50 views

Postfix - hostname appearing in email address

I have a fresh install of postfix on Ubuntu 14.04 server but the test emails I have sent all include the hostname in the email address. I have searched and found quite a few people with the same ...
0
votes
0answers
15 views

Postfix mail always in spam [duplicate]

I've installed and configured postfix trying to find the best way on the web. This is postfix main.cf: smtpd_tls_security_level = may smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout ...
-1
votes
2answers
72 views

Trouble setting up mail server(postfix, dovecot) on centos

I'm having trouble setting up my mail server, i have followed this tutorial: http://www.krizna.com/centos/setup-mail-server-centos-7/. Now i'm trying to send mails to my outlook adress, but i can't ...
1
vote
1answer
65 views

Postfix: SMTP Relay based on alias (from address)

I recently noticed when I add an alias to a Gmail account they ask me for a remote SMTP server, username and password. Then, whenever I try to send an email using that alias it gets relayed by Gmail ...
1
vote
0answers
154 views

Not able to send mail of Hotmail with your own postfix

I purchased DigitalOcean VPS in that installing cwp.admin open source panel. Also all configuration completed like postfix,rDNS,DKIM,DMARC,SPF,DNS Settings,etc... My problem is not able to send mail ...
0
votes
0answers
5 views

How to log output from maildrop?

The setup : postfix + maildrop in a virtual user setup. Maildirs are in /var/vmail/domain{1,2,...}/user{1,2,...} When maildrop is invoked from the command line, it delievers the mail correctly. But ...
1
vote
1answer
287 views

554 5.7.1 You are not allowed to connect. sending from postfix

I know a similar questions have been posted in different forums, but after following the recommendations I'm still stuck with this error, the problems is as follows: I've an email server at ...
0
votes
0answers
16 views

Forward Postfix mail with alternative sender address

We have a server with postfix + ISPconfig installed. In ISPconfig the redirect is configured correctly and works: postfix redirects all mails send by sender@example.com and addressed to ...
0
votes
1answer
81 views

iRedMail: Telnet sendmail over postfix possible for aliases without mailbox while not logged in

I am using iRedMail 0.8.6 for a e-mail implementation. Now the following problem came up: It is not possible to send a mail through telnet from an existing mail account whithout being logged in. ...
0
votes
0answers
15 views

How to block a users name from getting mail using postfix

I have a setup where I use /etc/aliases to define several email addresses for a user, e.g.: foo: user bar: user foo.bar: user However I want to block the users name (user@domain.com) from ...
0
votes
0answers
17 views

Postfix reject mail with result of spamassasin content_filter

I have a running Mailserver using Postfix and Dovecot. I also configured spamassasin like in this tutorial. Spam is properly marked as such and apropriate headers are added. Now I want to reject the ...
1
vote
1answer
43 views

Reverse DNS for 2 different domains

Sorry if this has been asked before, but I didn't find an answer to this question, I've 2 servers: djondb.com and taskgeo.com, both domains hosted in the same machine, and same ip address, the dns ...
0
votes
1answer
62 views

Firewall configured to allow 25/tcp but still cannot telnet into server on that port [duplicate]

I've got postfix and dovecot running on ports 25, 110, 587, 465, 993, 995 for the usual mail protocols. I can telnet into all ports except port 25 which you can see below. Any ideas on what's going ...
2
votes
0answers
22 views

Properly Configure Postfix to be secure (SASL + TLS)

I've followed online tutorials online to setup my mail server with SASL and TLS, and amavis. It all seems to works - except i can send mails even if i don't authenticate first - which is not good. I ...
-1
votes
1answer
25 views

Put mail on hold when failing to expand .forward in Postfix

Sometimes my users accidentally delete their .forward files, and then Postfix falls back to delivering mails to /var/spool/mail. I would like it to instead put the message in the Hold or Deferred ...
-2
votes
1answer
40 views

Add another email in GMail through SMTP server

I've had some luck using Postfix to relay emails sent to my server to multiple GMail accounts, but now I would like to go the other way around. That is, use the gmail "Add another email as your own" ...
1
vote
1answer
18 views

ISPConfig/postfix mail forward fails for one address only

We are running a postfix mail server under ISPConfig 3.0.5.4p8. The host machine is running Debian stretch. We have successfully set up several mail forwarding instances. However, one particular ...
0
votes
1answer
65 views

Postfix won't send PHP mail() function from form

I got postfix to send me emails from my server via console using echo "body example" | mail -s "subject example" my@email, but when I try to send an email from my website via mail(), the php function, ...
-2
votes
2answers
70 views

Postfix SMTP authentication security hole [duplicate]

I have Postfix running on CentOS 6. Everything is working ok except for a security hole in the smtp. I keep getting spam emails sent from my address to my address. I have checked this out on telnet, ...
0
votes
1answer
53 views

postfix NOQUEUE: reject: RCPT from 454 4.7.1 Relay access denied

PS: I seem to have solved this issue by adding all my domains to $mydestinations. I still do not understand why virtual_alias_maps seems to be ignored when looking for valid mydestinations. After ...
0
votes
1answer
33 views

postfix + virtual users (db) : adding a donotreply address

I have a setup postfix/dovecot/mysql on Centos 6.5 following the guide at DigitalOcean. I have virtual addresses and aliases working just fine, and now I am trying to add a donotreply alias. In my ...
0
votes
2answers
57 views

postfix - users are geting mail from them self that they did not send

Our company has a mail server configured with postfix/dovecot/amavisd on Ubintu 14.04. The system has been running for a couple of years and it worked fine. Recently some users started complaining ...
0
votes
0answers
10 views

dovecot / postfix reject mail where sender==recipient [duplicate]

I'm getting spam where the senders address is the same as the recipient, as I have an alias I can use if I need to send myself an email(!) so I'd like to block these mails. is there a simple rule I ...
1
vote
2answers
106 views

Zimbra (postfix) receives email from “my domain” but from external unknown server

I've installed a Zimbra 8.0.7, recently the server have become to deliver emails from accounts that belong to my domain ("example.com") but this mails come from external smtps, for example: 1. the ...
0
votes
0answers
52 views

Postfix check_sender_access map ignored

I have the following in main.cf: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_sender_access pcre:/etc/postfix/sender_access.pcre, ...
0
votes
1answer
21 views

ubuntu - Postfix mail sent from server not logged in mail.log or phpmail.log

I am having server which hosts 70-80 websites and also using relay server for smtp using postfix using mysql database for domain and email boxes. I have also activated the phpmail.log for sendmail. ...
1
vote
0answers
44 views

Postfix logs to remote log host

On my Ubuntu 14.04 server, I'm using Postfix as a front-end mailserver, and I would like to send all mail related info, including email addresses, to a remote host. In the file ...
0
votes
1answer
103 views

Postfix sending spam to local email addresses without authenticating

Running on Centos 6.4. Past two weeks I've been receiving emails from other email accounts located on our server. admin@site.com is sending to careers@site.com and nonexistentemail@site.com is sending ...
0
votes
0answers
17 views

How can I customize before-queue milter replies in Postfix?

Currently I use postfix with spamass-milter and clamav-milter as before-queue milters, which both work very well. I reject hundreds of messages a day on my small personal mail server on the basis of a ...
0
votes
1answer
39 views

Block unauthorised users from sending mail

I am using ubuntu server with postfix, ispconfig as control panel. I am using a mail relay server from mailjet. I am getting notification from them like Emails sent from this sender will not be ...
0
votes
1answer
114 views

connect to smtp.gmail: Connection refused

I am trying to send mail via Ubuntu 14.04 version to my gmail ID. Ubuntu is running via VMware on my Windows machine. Please let me know if the above description is not clear as I am newbie in working ...
0
votes
1answer
32 views

Not able to telnet to port 25 from public network, only private

I have postfix configured with inet_interfaces = all. The following all work: telnet localhost 25 telnet 172.34.56.78 25 # local IP telnet 34.56.78.90 # public IP telnet example.com # domain name ...
0
votes
1answer
52 views

Postfix error 5.7.0 : Must issue a STARTTLS command first

I have a problem on sending mail to my domain from an external address (I suspect more particularly the Exchange servers). The error is: myaddress : mail.mydomain.com #<mail.mydomain.com #5.7.0 ...
0
votes
0answers
90 views

Postfix, allow specific users to send to selected domains

I'm looking into whether it is possible to allow specific users(senders) to send to a given email address. This is to be used, so that only the management can mail all@domain. I have looked into the ...
0
votes
1answer
60 views

Filter emails based on missing header in Postfix

How do I reliably enforce a policy of certain header being present in all messages in Postfix? For example, To: header. I've read about header_checks and used them previously to filter messages ...
0
votes
1answer
51 views

Postfix - Can't Receive External Mail

i am using webmin control panel with postfix mail server and every thing working well i mean email message is encrypted and mail sending from my server to other companies like gmail also working very ...
1
vote
0answers
36 views

Postfix send SPAM

I come a few days being listed in the Spamhaus CBL. CBL list reports that I have a virus on the network and that is sending emails as "localhost.localdomain". I do not know where to be coming this ...
0
votes
1answer
16 views

Postfix ignores virtual_transport setting for LMTP

I was trying to use LMTP instead of the standard LDA via UNIX-pipe for the mail transport from postfix to dovecot. I configured dovecot and installed dovecot-lmtp, now i have an (non-public) ...
0
votes
1answer
18 views

Postfix header_checks and unicode regexp

Does postfix support unicode regular expressions like \p{Han} to detect unicode scripts? I would like to use them with header_checks.
1
vote
2answers
174 views

Spamassassin, Dovecot and Postfix: Move spam to folder

I am trying to move Spam detected by spamassassin automatically to the Junk folder on Debian Jessie. I installed Spamassassin and edited the configs: local.cf (spamassassin folder) rewrite_header ...
0
votes
1answer
55 views

Postfix doesn't send bounce on reject

I have a Postfix (2.6) installation on a dedicated server. When I try to send a message to a non existing domain, I get this line in my mail.log: postfix/smtpd[11069]: NOQUEUE: reject: RCPT from ...
0
votes
0answers
27 views

Postfix and PostgreSQL: How to make same aliases work for different domains?

I've currently three domains. I want to setup (mostly) the same aliases for every domain and retrieve the mails on Thunderbird. It already works to send/receive mails for contact@domain1.com, ...
1
vote
0answers
50 views

Problems whitelisting senders in Amavis-new

I've a CentOS6 server with Amavis 2.9.1 + Postfix 2.6.6 + clamav 0.99 that I use as mail relay (aka mail gateway), with network set as follow: eth0 (10.10.132.104) as external inteface eth1 ...
0
votes
2answers
73 views

I can't send a message with postfix. Error: “Must issue STARTTLS first”

I am novice with postfix. My goal is to use it with fan/nagios/centreon in order to receive notifications. I have tried many solutions found on this forum or thanks to google, but it didn't resolve my ...
1
vote
0answers
43 views

SSL_accept error with postfix oportunistic STARTTLS

I have configured postfix 2.6.6 on centos 6 as a mailrealy in front of an exchange 2010 server. Things work. Now I would like to add oportunistic encryption to incomming and outgoing mail. At least ...