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Questions tagged [postfix]

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` (non-default content of main.cf) and `postconf -M` (content of master.cf)

Postfix is a mail transfer agent (MTA) that supports IPv6, DNSBL, SMTP AUTH (SASL), TLS and various database backend.

Postfix was written by Wietse Venema in 1997 and first released in December 1998 as IBM Secure Mailer.

It was designed to be highly secure and configurable, and is a drop-in replacement for , with much simpler configuration syntax.

The software was also formerly known as VMailer.

6398 questions
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mail command : does content-filter in postfix works?

I use Postfix in my machine (linux). When i send a mail to a local user with telnet localhost 25 in command line, my mail is parsed by a content-filter (for example: spamassassin) => no problem. But when i send a mail to the same local user with…
totoaussi
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make Postfix to bcc mail twice

I am running a Postfix mail-server, to scan mails I forward them to amavis, after the scanning amavis forward the mail to ciphermail (a program that automatically de- and encrypts emails). Ciphermail resent the mail to amavis and amavis resend the…
Ulli
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Authentication with Dovecot, SHA512, and salts

I have a database that has a username, password, and password salt in it. The password is hashed using SHA512. The data in my users database looks like this: user = testuser password_hash =…
Tom Freezers
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Postfix lookup failure: works from localhost, not on other nodes in LAN

I am getting temporary lookup failure for the recipient address when trying to send email using Postfix and Gmail from a machine other than the host, on the same network. It works just fine when testing on the Postfix host. EDIT: I have a client…
Facepalm
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Can't receive emails to my mail server

I created a mail server, following this tutorial: https://www.linode.com/docs/email/postfix/email-with-postfix-dovecot-and-mysql , I configured the email on my email client, SMTP and IMAP and both connections are working, I can send email from my…
DiogoSaraiva
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Postfix Rejects incoming bounce notifications ( Recipient address rejected: User unknown in local recipient table )

So I've set up a postfix email server, I can send, I can receive. But I noticed some interesting activity in my logs. I was testing an accidentally sent to a non-existent email address, now the mailserver on the other domain is trying (without…
Jacob
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Comparison of methods to send Postfix emails to Procmail

I want to begin using Procmail in order to perform filtering on specific accounts in virtual domains as received by Postfix on my Centos 7 server. In various articles it seems that there are two common ways to direct the Postfix emails to…
r.j.bumble
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Postfix silently ignoring recipients

I have a weird issue wherein an email is received to my mail server running Postfix with multiple recipients on the same domain and only one of the recipients will receive the message. An example from the email headers of the delivered email…
Jeremy Driscoll
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Postfix after-queue filtering for local destinations only

I need to run all mail addressed to local domains (as defined in vmail_domains) through a simple after-queue content filter which then re-injects the processed emails back into Postfix via sendmail. I have successfully created a perl filter based on…
r.j.bumble
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postfix/dovecot - run script when mail is received

I need to implement solution on my postfix/dovecot server which will execute bash script every time message arrives. For this purpose I did following things in master.cf configuration myhook unix - n n - - pipe …
Piotr
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Postfix not sending authentication when relaying to local smtp server

I have been trying to get my postfix server to relay all of my message to a local SMTP server. As far as I can tell I have everything set up right, but I get a 550 Authentication error. My local SMTP server works fine when i send a message with…
Marty Griffin
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Windows 8.1 Mail Client Sending via Postfix

I have a postfix server setup to accept outgoing mail from STMP authenticated clients. It has been working this way for many years with success for a large number of different e-mail clients. Recently, I got a Windows 8.1 based tablet computer and…
Adam Bumpus
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configuring .mailrc for multiple Maildir users

In a CentOS 7 server with postfix and mailx, my ~/.mailrc file contains: set MAIL=/root/Maildir set folder=mail This enables mail from the root user's Maildir to be reviewed when the root user types in mailx at the terminal. However, the above…
CodeMed
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cannot find postfix/mailx email in maildir, why not?

In a CentOS 7 development machine, I have configured postfix to allow emails to be traded between localhost addresses. Mailx is also installed. I am able to send email, and the log files indicate that the mail has been delivered. However, I am…
CodeMed
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Where does DSPAM fit into the chain

Is there any postfix guru here who knows that after a mail gets into postfix what's the order it gets forwarded between the internal filters and components? As I figured: 1, Postscreen 2, Recipient checks smtpd_recipient_restrictions = …
poettring
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